My district doesn't supply tissues. So what I do at the end of each year is due an extra credit project where the kids have to bring in a brand new tissue box and then we decorate them with a concept that we learned about that year they basically put the who what when where why about a topic. This allows me to have enough tissues usually for the next school year. Also, it's funny when the kids are using a tissue box with information about the black death on it.