I have used pushrods from an old car engine to nail logs together. It takes a sledge hammer to drive them.
Worn out socks serve as covers for my dust mop. I use the lower halves of socks to contain/protect the sunglasses in my glove box. The upper halves work as sleeves to protect forearms in warm weather.
This last bit is going to take a little explaining. I play games that involve toy soldiers/monsters about an inch high. The usual way to store these models involves getting sheets of foam rubber and cutting suitable holes in it. I use toilet paper cores that I flatten, fold and flatten so it's nearly square in cross section. Next step is to cut them into suitable lengths. Finally, the cardboard squares get set into a box to form a grid with each square being a space for one model.