There is a great contest going on with Instructables for RAINBOWS! Basically, you make a project using rainbows and upload it as a step by step tutorial onto Insturctables to be entered to win!
Here’s what they say about it: “At the end of this Rainbow Contest, you’ll find a pot of gold-standard prizes from Dharma Trading Co.: screen printing equipment, tie die kits, and more.So dazzle us with a project that is inspired by the rainbow. Food? Robots? Crafts? Furniture? Anything goes.And we have a special judges prize for screen printing, so ink up your squeegee and get printing!”