I have 300 manufacturers samples available. I bought a collection, took a few I needed and this is what is left.
No time to scan them all but the ones shown here will give you a good representation of the type of chip.
http://www.marlowcasinochips.com/misc/miscchips.htm

There are no duplicates and most are from the major manufacturers.
These would be ideal for someone just starting out in samples, or for resale or trading.
I would break them up as follows:

Lot of 50 - $173 shipped
Lot of 100 - $315 shipped
All 300 - $800 shipped

If you prefer me to bring them to the convention for you, deduct 5% from the prices.
I will not be bringing these if I don't have a buyer.