Yes, it’s mainly a music festival in the public mind. But as you’ll read in our guide, there’s plenty of non-musical stuff to see over the Labor Day weekend. In no particular order, here are five attractions where you can rest your ears:1. Flatstock, Fisher Pavilion, 11 a.m-8 p.m. All three days during the festival, the American Poster Institute is showcasing dozens of artists and their work. Among them will be local illustrators Braud Klausen, Jon Smith, Jeff Kleinsmith, Invisible Creature (aka brothers Don and Ryan Clark), and Jesse LeDoux (whose work graces our cover this week and is featured at left). Most will be signing their wares, which you can then frame and hang.2. Eugene Mirman, Comedy Stage North, 5:30 p.m. Sat, 3:45 p.m. Sun., 2 p.m. Mon. The veteran comic has played Bumbershoot before, and he knows not to pander with easy political jabs and stale Bush jokes. He’s bringing mystery guests on stage both days, who could include Charlene Yi, Patton Oswalt, David Cross, or even Doug Benson–all of whom are also playing the fest.3. Kerfuffle, Northwest Rooms, 11 a.m.-8 p.m. An ambient soundtrack from DJ Spooky accompanies this group show, which runs all three days of the weekend. Local photographer Chris Jordan documents dumps and landfills, our giant manmade mountains of trash and castoffs. Artist Allison Kudla, not yet 30, will have her capacity for (urban eden, human error) installed; it’s like a piece of lab equipment that writes patterns in living green “ink” (actually ground-up biomatter). Using algorithms, the computer-controlled printer spews delicate organic patterns.4. Christian Lander, Literary Arts Stage, 12 p.m. Sunday. The blogger collected his wisdom last year in Stuff White People Like: The Definitive Guide to the Unique Taste of Millions. Among his self-satisfied targets are NPR junkies, triathletes, Prius braggarts, Whole Foods worshippers, fixed-gear fetishists, early Obama backers, and those whose musical tastes froze at the Pixies. Luke Burbank will interview him on stage.5. The 1 Reel Film Festival, SIFF Cinema, 11 a.m.-10 p.m. Short movies are grouped into themed blocks all weekend long. There are local packages, music videos, sci-fi themes, a made-in-Germany sidebar, among the many other offerings to watch. It’s a great way to sit down, get out of the weather, and recharge your batteries before hearing more music outside.