You have a number of options.

1. Ebay is always an option.
2. Jackpot Auctions is an option.
3. You can sell your chips through an established chip dealer who will take a commission.
4.. You can take them to Reno and rent a table to sell them.
5. You can scan the chips and try to sell them here.
6. You can always send them to me as a gift and take the deduction on your income tax. I'll of course be happy to give you a receipt