School themed matchbox - Science

USA only. Since I am a teacher, I though about how much fun it would be to make matchboxes of some of the subjects we had in school. Since science was my favorite subject, we are going to do that one first. So, some of my ideas were

chemistry - elements, lab equipment, explosions

biology - nature, microscopes, animals, cells, DNA

physics - astronomy, isacc newton, planet orbits, roller coasters,

Do you get the idea? If so, you will be making a matchbox with a science-y theme. Personally, I don't know what I would fill it with, so for this one, I am going to say you can fill it OR send something a little extra to make up for the lack of filling, like a sheet of stickers or a pen or pencil. Please rate on the matchbox, not fillings. I reserve the right to ban at my discretion.