More party supplies can be obtained from the department. Purchasing has a stash that we can use.
The foosball tables have some history, which isn't clear, but one table was donated by Yahoo, and the other was paid for (in full or in part?) by grad student personal donations
There is a rumor that GRACS has some sports equipment, but noone has confirmed.
RecSports loans out some sports equipment if we need it for an event.