Put it on EBAY with a RESERVE on the price for whatever amount you like. Don't get carried away, remember you were asking $5, but get your advertising costs back anyway. If you have not watched/used EBAY before, crank it up and watch for a while and get an idea of how things work. Do a little research, can't hurt. Be honest and advertise "AS IS", tell them you don't know what it is. If they know and want it, they will bid. Someone may want it for parts to fix another. That way they know you are making no waranties as to condition or operation.

Good luck