Here are some 2.50 chips you might not have.

Blue at the top is a Paul-son NCV, probably made for tournament or Fun Night use.

Bottom nine appear to be Chipcos, all 2.50's, and likely made as samples or promotion items. Anyway, they all have the same edge marking (6 white) so same maker for all of them.

$40 for all 10, or $5 each if you want to pick some. I have only one of each. $2 shipping for any number of chips. Personal PayPal is fine.