You don't have to be a fan of the Magic Bus series to get in on the science action. This Magic School Bus — Going Green Experiment Kit ($20) is packed with projects to help tots become more eco-aware, including building a compost tube, making packing peanuts disappear, and decomposing food with fungus. The ZobMobile Racer ($20) allows kids to build their own car before racing it down the block. See if you have a lil Project Runway contestant on your hands with the Fashion Origami set ($12). The robotic Hexbugs ($11 each) can sense objects in their way and then change their direction. Whether used indoors or out, a Teepee ($300) is the perfect hideout for kids who need a break from their routine.