Ji Lee wants little people to live on your ceiling. We think you should let him. After all, he’s the guy who gave New York the Bubble Project. The newest project from the guerrilla artist/ad man is Parallel World, a tiny musician’s living room where, ostensibly, tiny musicians come to write tiny AAA radio hits. You may know Lee’s “legitimate” work (he’s done ad campaigns for Cheerios, Tylenol, and Monster.com, as well as logos for New Museum and the Tap Project), but these vertical dioramas are just one of a number of independent projects he’s posted on his site. If you’re looking for some inspiration, commissioned scenes have already included rooms, ski slopes, art museums, and disaster scenes. Personally, we think a tiny Three Mile Island would really be lovely in the rec room.