Currently doing a rainbow and unicorn theme for my 4 year old it's waht he wants so he gets!
Aww how lovely, they grow up quick don't they.My 4 year old had a rainbow theme, aww I loved it, my hubby painted it freehand. Its been emulsioned over but it was so pretty.
We got curtains & bedding from Dunelm and went to B&M for rainbow accessories if that helps @Teawithme