For the music fan who has heard everything (and the attendant demo bootlegs, as well) Shirtify
ought to be the hot new thing. It also appears to be the best way for you to connect financially with the artists you listen to from streaming providers, like Spotify or Last.fm. You pay a fee — a one-time shot of $35, a three-pack for $99, or an annual subscription of $399 — and Shirtify parses your listening habits. The company then picks one of your more listened-to artists and sends you a T-shirt from said artist. It's not cheap, but the money goes directly to the artist, and you have the option of sending it back if you don't care for it.