I actually won a set of these years ago in a contest via Bluff Magazine. They did a fantasy poker thing (kinda like fantasy football, where you pick players and then their results earn you points, etc)
I came in 2nd (first place in the contest was admission to a Howard Lederer Poker Boot Camp, lol!) and won the set of All-in Chips. I remember they had like this rubbery sort of coating on the outside that gave them a nicer feel than standard dice chips. I don't have them anymore though, sold them ages ago.