Dopamine Designs for Happy, Feel-Good Spaces
Welcome to Rainbow Shaker!
Colour Your Home Happy™
The Course to create YOUR Happy Home
Ready to create a home that radiates happiness, energy and personality 🌈?
Colour Your Home Happy is a fun, interactive online course that helps you break free from design rules and embrace colour with confidence. Through dopamine décor, fearless styling, and hands-on creative exercises, you’ll learn how to transform your space into a bold, joyful reflection of YOU.
The Podcast for Bold, Joyful Interiors
Tired of neutral, uninspiring interiors? So am I!
In the Colour Your Home Happy podcast, I help you gain the confidence to use colour fearlessly and design spaces full of joy, energy, and personality. From dopamine décor tips to expert interviews, this podcast will inspire you to create a home that makes you smile every day.
Services
Looking to transform your space into something truly extraordinary? Whether it’s a joyful home that reflects your personality or a commercial space that wows your clients, I’ll guide you every step of the way.
Perfect for homeowners, renters, and bold businesses who want to transform their space into a vibrant, story-driven haven.
A styled space can speak louder than words! Whether it’s for a branding campaign, magazine feature, or real estate listing, I’ll style your space to create unforgettable visuals that capture attention and tell your story.
Perfect for creative brands and agencies who need shoot-ready spaces with unique styling that makes a visual impact.
Ready to design a set that tells a story and leaves a lasting impression? From TV and film sets to movie clips, I specialise in creating immersive environments that are as functional as they are stunning.
Perfect for production teams, content creators, and event organisers looking to design immersive sets full of story, charm, and colour.
Recent Colourful Transformations
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.
Clapham Project
(Coming Soon)
Residential | Family Home | London
Discover
A vibrant London family home where Bauhaus geometry meets Miami joy.
Hi! I'm Justine, Your vibrant designer…
Bold colour, fearless design, feel-good spaces.
I’m a London-based interior and set designer creating bold, joyful spaces across the UK, France, and remotely. Whether it's a dopamine décor home, a playful set, or a standout commercial project, I help people and brands design interiors that reflect their true personality—with zero beige in sight.
I swapped rocket science 🚀for riotous colour—leaving my engineering career behind to launch Rainbow Shaker, a creative studio where structured problem-solving meets bold, story-driven design full of personality and unapologetic fun.
You might’ve seen me on Channel 4’s The Big Interiors Battle, or heard me on my podcast Colour Your Home Happy, where I help you ditch dull, trust your instincts, and create a home as bold as you are ✨!
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
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!