My youngest daughter recently hyper-extended her knee just a bit in a soccer game. She is okay, so far, but has to use crutches for a week or so. The Dr. told her he will see what it is like later this week, and that he may need an MRI (Which I told her is better than an MRE) to see if any damage was done. We borrowed some crutches from one of my wife's co-workers, and they were a little old, meaning they hurt my daughter's armpits. Well, a little foam, a little fleece, and a couple of shoelaces later, and here is the result. I never claimed to be a seamstress, but they are functional. Good for a giggle at least. My older daughter says they look like mailboxes.