Here are three unusual chips I've had a while.

The oversize chip (48 mm dia.) is a Paul-son sample. Price $10.

The Caesars Palace is a $100 promo chip. I've had it 2-3 years and I think it is still playable (not in Tahoe, of course). TCR V2222. Price $125

The standard size chip is an old CC+GTCC chip from the second meeting in 1989. Mold is Unicorn. Chip Guide CG00427. Price $10.

No postage on any of these.