Best place to buy bean bag game (or, ahem, "cornhole") in Chicago?

Where do you chicagoans get all these wonderful toys?

K and I were smitten last summer when we saw all the folks out on their sidewalks playing this bean bag game with the unfortunate moniker. People in Charlotte don't do much except go to the mall, Baltimoreans are too mean to want to have fun -- the only place we've lived that had its own local sport was Asheville, but hackeysack was never really my thing.

But cornhole! What fun! (not that kind of fun, you east coasters).

Everyone in Chicago seems to have a set or a friend that does, but where the hell do you buy one -- or, more precisely, one that won't set you back $2,000 pesos. (Using pesos to price things makes things seem cheaper when you convert back to dollars, another nifty trick to survive the coming depression!)

If, and this is a big if, there are any people in Chicago who actually read this stupid blog of mine, do you have any suggestions?