Bottle Bank via Martha Stewart: transform a used plastic bottle into a cute piggy bank. Could use same idea to made little containers for kids to store their collections too (use bottle with wider opening and don't make slot)
Cool DIY Projects Made With Plastic Bottles - Cute Bird Feeder From A Plastic Bottle - Best Easy Crafts and DIY Ideas Made With A Recycled Plastic Bottle - Jewlery, Home Decor, Planters, Craft Project(Bottle Recicle)
faire un labyrinthe avec des pailles / Kid-Made DIY Recycled Cardboard Marble Maze. Fun recycled project from start to finish that gets kids tinkering, building and proud of making their own handmade toy.
20+ Cool Plastic Bottle Recycling Projects For Kids