This DIY plane piggy bank soars with such coolness that your kids will be begging to save those pretty pennies of yours :-) fun kids crafts, kid ideas, kids diy ideas
How to Build a Tissue Box Catapult - Fun STEM project! Make it an experiment by modifying the design or by testing different materials to see how far they shoot.
children activities, more than 2000 coloring pages (Diy School)
15 Easy Catapults to Make With Kids -- great engineering project for a simple machines unit!