Not quite the same, but the local joint gives free slot tokens. They used to just give tokens that you could cash, but now you put your card in a machine and request the credit. You can't cash out the credit, but you can cash out any winnings. The display counts down the credit so you know when it's used.
Since it's free, I usually play it out and give any winnings to my wife for slots ...... though if I hit a BIG jackpot Maybe I'll cash out and keep it myself.