Yeltzen made a point in another thread about playing 7stud & games other than hold'em. I am almost embarrassed to say this, but one house I play in has some really oddball games.
By far the wackiest is what they call Tic-Tac-Tomaha - basically its a variation of omaha where everyone get 4 cards - the board is layed out like this:
X X X
X X X
X X X
1st flop is corners, 2nd flop are middles, 3rd flop is center. High/Low chop. You can play any column, row, or diagonal... and you must play 2 cards from your hand.
One of the guys in the group actually played this at the elks club - so others apparently play it too.
A "cool" game we play is kick your forth. Five card draw - you arrange your cards in the order you want to flop them. on forth street you can opt to get a kicker. Your last card remains down. High/low declare - this is a "great" bluffing game.
Definitely never seen those in the casino - not that i would play them

outside of the home...
Any other wacky games you guys play?