DIY Sidewalk Chalk - only three ingredients needed!
DIY Sidewalk Chalk -- Easy, fun and cheap to make. Kids will spend hours outside playing and drawing. Also makes great kids' party favors.

Green Kid Crafts: Eco-Friendly Creativity and Science Kits
How to make Rainbow Roses: a Step by Step Guide
Rainbow Roses Get white of cream colored long stem roses. (Carnations work well too). Cut the stem according to the picture, you will then place 4 glasses of food color dyed water together. Put one piece of stem per color and allow the flower to soak up different colors.