If you have 30 room keys you want to trade, I will start a shotgun for room keys....you will have 3 different people to send 10 room keys to...you will get 30 room keys in return....non damaged keys only. Please send me your name, address and phone number and I will get it started....I have 6 Room Keys books (the one published last year), ready to mail $24.95 postpaid.....