Shake Up Your Space with Colours That Bring Joy ✨
Welcome to Rainbow Shaker!
Interior Design • Set Design • Colour Coaching • Online Course
Want your space to feel joyful, but worried it’ll be “too much”? Love colour, but scared it’ll end up loud, childish, or just… wrong?
Whether you're decorating a home, styling a shoot, designing a set — or rethinking your business space (like a shop, office, or hotel) — you're stuck between safe and bold.
You want colour with purpose. A space that tells a story. One that feels like you, speaks to your people, and sparks real joy ✨.
But…where do you even start?
That’s where I come in…
I’m Justine — Here to Shake Things Up (Colourfully)
As an ex-rocket engineer turned colour-obsessed designer, and founder of Rainbow Shaker, I help people, brands, and businesses bring spaces to life with colour that means something — not just colour for show.
No boring, one-size-fits-all designs. Just bold, joyful spaces that feel unapologetically you — whether it’s a home, a shoot, a set, or a space that sells.
From creative courses to full-on design support, I’ll meet you where you are — and help you shake things up, with heart 💖.
🎨 Curious how colour links to memory?
Take my free Colourful Memory Palette Quiz — it turns your favourite memories into a personalised palette.
Pssstt… wanna know how I went from rocket science to shaking up the design world?
🌈 How life feels after
You pick colours with confidence (goodbye, Pinterest spiral).
You enjoy a space that’s as playful and vibrant as your personality — because life’s too short for boring rooms.
You hear your guests (or clients) say, “Wow! I didn’t know it could be this beautiful” (warning: they might never leave... better make some extra snacks).
Your set goes from background noise to the star of the show, captivating everyone who steps into it — even Pedro Pascal, because your set is just that cool.
You wake up to a space that makes you think, “I’m so glad I’m alive” (okay, not that deep... but you get it 😜).
Whether it’s a photoshoot, a film set, or an event, you create visuals that stop the scroll and make people feel something.
Pick Your Colour Adventure
Design Your Happy Home 🏠
For Homeowners AND renters
Whether you rent or own, want to DIY or need backup — there’s a way to shake things up your way:
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🌈 Colour Your Home Happy™ Course
A playful, step-by-step course that helps you ditch the beige, break the rules, and design a colourful home that feels totally you — renter or not.
✅ Budget-friendly, fun, interactive
✅ Perfect for renters, new homeowners, DIYers
✅ Do it at your own pace -
🪄 1:1 Creative Coaching
A power session to make confident choices — whether you’re stuck on one room, a tricky palette, or just tired of second-guessing every single cushion.
✅ Personalised summary delivered after our call
✅ Moodboards, palette help, layout feedback
✅ Also available as an add-on to the Colour Your Home Happy™ course -
✨ Full Interior Design
From joyful homes to dreamy transformations — full support, from start to photo-ready finish.
✅ Local & remote-friendly
✅ Optional pro shoot
✅ Always playful, always personal
Not sure what you need?
Book a free discovery call and let’s figure it out together.
Design That Sells 💼
For brands, creatives & businesses who want scroll-stopping, joy-sparking design.
Retail, hospitality, offices, Airbnb, holiday rentals — I create commercial interiors that connect with your people and elevate your brand.
✨ Aligned with your brand
✨ Built for beauty and function
No more bland backdrops. I style shoots that stop the scroll — and look amazing online or in print.
✨ Campaigns, editorials, real estate, reels — all covered
✨ Possible access to immersive locations in London and Paris
For TV, social media, events or film — I design personality-packed sets that do more than fill space. They tell your story.
✨ Playful, purposeful, unforgettable
Recent Colourful Makeovers
Hospitality + Branding | Paris
A whimsical Paris hotel reimagined with murals, florals, and a storytelling soul.
Residential | Kids | Vilnius (100% remote)
A Montessori-inspired bedroom made to grow with your little explorer.
Workspace | Second-hand | Paris
A sustainable office redesign that sparks joy, focus, and team spirit.
Residential | Family Home | London
A vibrant London family home where Bauhaus geometry meets Miami joy.
What my clients say about me
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![Joyful testimonial by Jemima Jay Spence]()
"Justine is incredibly efficient and has delivered two projects on time and with lots of creative style. I’m really happy with her work and would highly recommend her."
Jay, Dalmarnock Drive & Scarrel Gardens Projects
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![Colourful Memphis-inspired interior design by Rainbow Shaker, Paris]()
"Justine worked on my flat in Paris and I couldn't be more happy with the results! She managed to make the whole flat bright and playful with her choice of colours & patterns! She coordinated furniture and trades for the project, taking into account my request to use second hand furniture whenever possible. If you love dopamine décor and would like to step out of your comfort zone, I highly recommend her creativity and expertise!"
Paul, Tolbiac Project
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![Hotel owner and Rainbow Shaker after the hotel redesign in Paris]()
"After working with many interior designers and architects on my hotel, I can now say Justine is the best—in terms of ideas, availability, friendliness, and professionalism. Thank you again, Justine 🙏❤️!"
Raphaël, La Petite Rosa Hotel
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![Playful Montessori-inspired kids room design by Rainbow Shaker, Vilnius]()
“I’ve admired Justine’s bold style for years and was thrilled to have her design our daughter’s room! She beautifully captured Montessori principles and exceeded all expectations, without lengthy briefs. Justine is precise, reliable, and a joy to work with. Highly recommend Rainbow Shaker to anyone ready to bring more colour and creativity into their home 🌈🥳!"
Zita, Algirdo Project
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![Interior design testimonial, Interior design project in Germany]()
“Justine managed to grasp my vision as to my ideal future apartment. After a couple of interviews, she structured and enhanced it into accurate digital projections, which we smoothly fine-tuned together. Then, she executed this master plan with flare, active involvement and enthusiasm. The end result is stunning. I warmly recommend her."
Gregory, Glockenbach Project
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![Rainbow Shaker - Colourful hallway for the Clapham project]()
Justine did an incredible job transforming our Victorian house into a vibrant, joyful space. She's not only creative but also technically brilliant and full of clever solutions. She works tirelessly, is flexible, and never lets you down. Trust her process: you won’t regret it.
Caroline, Clapham Project
FAQs
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Yes! Renters are welcome — think bold statement pieces, paint hacks, and textiles that won’t leave a permanent mark.
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Yes, yes, and yes! I’ve spoken on panels, been featured in press, and love collaborating with cool brands. If you want me to shake things up at your next event or feature me in your publication, let’s chat.
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No worries — it’s all about balance. You can absolutely have colour without overwhelming the space. Let’s make sure it’s vibrant, not neon, and keeps your vibe just right.
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Totally get it — what works for me (or some of my clients) might not be your vibe, and that’s what makes your space uniquely yours. Let’s find the perfect level of bold that feels just right for you!
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Yep, that’s what I’m here for! Start with a free discovery call and let’s untangle your design dilemma together.
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Totally! Many of my students pair the course with personalised coaching. It’s like a design power-up, giving you the best of both worlds.
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Yes! I travel to France and other parts of the UK regularly. Plus, I offer remote design and styling packages, so we can collaborate no matter where you are.
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I’ve been right here, waiting for you to find me 😉
Ready to Shake Things Up?
Let’s turn your space into something unmistakably you — bold, joyful, and anything but boring!
You’re already amazing. Your space should be too ✨
FREE QUIZ
Colourful Memory Palette
Need help finding inspiration for your space? Your home should be a reflection of your unique experiences and memories. Take the quiz to take a trip around the world and explore this special connection!