Lately we've been playing HORSE cash games (1 orbit of each) after NLHE tourneys. We have 5˘ chips in play that only get used in the stud-type games. For (limit) Hold'em and Omaha-8, it's 50˘/$1 (i.e. 25˘ small blind); for the stud games, it's 5˘ ante, 10˘ bring-in, 25˘/50˘, with $1 bets on the river - although doubling the bet on the river may not be your style. I like it as a house rule because it makes bluffing on the river possible, rather than always getting your > 10:1 bets called. Either way, these stakes work out to producing roughly the same sized average pots for both community (HO) and stud-type (RSE) games.
Here's a .PDF of the summary for our stud games:
http://individual.utoronto.ca/jdunford/Samurai_Stud.pdf
There's been some talk of having the dealer post the ante for everyone (rounded to 50˘ for a full 8-player table; 25˘ for 6 or fewer players) and force the bring-in to complete the bet at 25˘ to avoid having 5˘ chips... but so far, we've played with real antes using a non-denom chip representing 5˘. It's the dealer's responsibility to count the antes (and yell at lazy players) before dealing. Besides, there's no shortage of chips at imthatguy's and my games!
