Here's something nifty. Playing the Japanese demo of Namco Museum on PS3 unlocks special items in PlayStation Home. We've confirmed that this works with the US version of Home after downloading the Namco Museum Beta from the Japanese PS store.
In order to get the schwag, you first need to create a Japanese PSN account. After that, you can download the demo, which contains playable Pac-Man, Galaga, Dig Dug, and Xevious. Achieving high scores in the games will "gift" you with several in-Home items; we've snagged a Galaga T-Shirt so far, but have received tips that a full Galaga arcade machine can be obtained and placed in your virtual apartment.