pawn shop...or kms (like matt said)...craigslist (1 pic, 1 list, 1 reasonable price, buyer takes everything)...
but imho it really matters on how much they mean to you & how much they are worth to you? will it be worth the time it takes to pursue a venture like above.
i really like the ideas that were mentioned about donating them to an organization. great way to help others and help yourself get rid of it all in one lump sum.