This year, the Henry's fundraiser party features hundreds of artworks by Yuki Nakamura, Joe Park, Lead Pencil Studio, and dozens more. At $100, $200, or $300, every piece is a bargain, but there's a catch: They're anonymous, so you must buy based on how much you like a piece, not by who made it. It's like a blind date with art. Plus, music by Sarah Rudinoff, Nick Garrison, and the ever-stellar DJ Riz; cocktail-napkin portraits by Ellen Forney; et cetera. (Henry Art Gallery, 4100 15th Ave NE, 800-838-3006. 8 pm—midnight, $50—$150.)