I'd suggest using them as toilet paper, but you don't know how many hands touched them before you got them. Since you couldn't sell them if you wanted to....I suggest recycle them. Did you fall for the "get delivery of your shares so the shorts can't have them" speal??
My shares are growing mold. Soon they will be part of the flora and fauna. I will let them ooze into the elements and fade away. BUT, I WON'T sell them!