Rainbow Party Guide
Decor: 

Giant Balloons in every color

Rainbow Mylar Balloons

Festive Festooning

Rainbow Felt Ball Garland 

Pastel Rainbow Party Hats

Rainbow Piñata

Tabletop:

Rainbow Plates

Rainbow Party Cups

Rainbow Pom Pom Table Linen

Mini Rainbow Piñata

Spring Flower Boquet

Treats:

Rainbow Jello Squares

Rainbow Fruit Pizza

Rainbow Strip Cupcakes

Rainbow Fruit Kabobs with this creamy fruit dip

Just for Fun:

Over the Rainbow Craft Kit

Temporary Rainbow Tattoos

Giant Rainbow Coloring Pages

Glitter Rainbow Stickers

Tie Dye Kit