Mahesh Alur from Charles A Tindley Accelerated School in Indianapolis, IN, submitted this 'scientific' button. "When my students in Chemistry performed well, I gave them this button to recognize their performance. Hydrogen has one electron, which is shown in the design," said Mahesh. "My students love them and they keep them long after they've left my class! Students from different classes trade the different styles that I've made. The buttons are a great incentive."