how to make a solar oven from a pizza box - The tinfoil reflects the suns heat into the box lined with black paper. Apparently she has cooked cookies this way as well! Below is a tutorial for how to make a solar oven from a pizza box.
PVC Sprinkler Water Toy - how smart is this? 10 bucks worth of materials from the hardware store will bring lots of joy this summer. :) TWIST use a couple of pipes and plastic streamers as well, call it a "car wash" and ride bikes through it.