The first ever Chicago Ideas Week is coming up October 10 through 16, with the goal of bringing “the world’s top speakers together with Chicago’s best thinkers to create an ecosystem of innovation, exploration, and intellectual recreation.” Kind of like TED.

So CIW’s looking for a T-shirt design “around the theme of ideas.”

Design submission details are here.

The winner gets (1) $250 cash. (2) Two tickets to TedX Midwest (October 13-14). (3) $2,000 toward travel to TedX Midwest, if attending.

The T-shirt will be available via Threadless. Deadline is August 11, so hurry.