Mismatched colour pop groomsmen modern ushers haha oh god could happen
All Things Rainbow : Cakes Gallery
Gray and black as the neutrals, and then color matched shoes, bouquets and bouts for the wedding party.
Wedding Magazine - Wedding moodboard: rainbow ideas for your celebration
Rainbow bridesmaid dresses white on bottom
rainbow origami and lights. such a cheap centerpiece idea but so cool. ombre maybe? I wouldn't do the rainbow but I love the idea.
Could achieve similar look with hanging balloons! The Hanging Lantern Company - hanging paper lanterns and other pretty products to help you style and decorate your wedding day
Technicolor Nails: Photo by Christine Farah via Green Wedding Shoes
Ceremony Layout Wedding seat bows - This *could* get expensive if you have over 100 guests, but still - nice way to dress up a big bunch of rental chairs! @ Terry Postma (for Becah's wedding)