Adorable and fashionable It looks like a real grasshopper when exposed to sunlight, can star its mini-engine by shaking itself as if looking for food It's novel and unique; also it's a good demonstration of solar power on a small and cute scale, a wonderful enlightenment for students' solar energy concept teaching as well. They're funny to have especially when you have a number of them all shaking at the same time, might give you the chills!