Where does pocket lint come from? Are they babies of all my missing socks?

Pocket lint comes from the procreation of toe jam and belly on cheese. The baby fetus pocket lint is kept in a warm environment (pockets) much like a kangaroo does with its young. To Answer your second question, If left alone long enough to mature, pocket lint can be woven into socks or even shirts. But socks and shirts need to wear down enough to become either toe jam or belly on cheese before the reproductive cycle can continue.