In addition to tons of books / movies, the library system in Ann Arbor allows you to take out musical instruments, and I gradually worked through their synthesizer options in search of stuff that was easy to pick up as opposed to things that sounded like droids with gastrointestinal issues. My favorite thing they have is Critter & Guitari's Pocket Piano, which is relatively simple but quite intuitive. I got one for Christmas this year from Frau Artillery.
This is a newer version than the one the library has, so it offers more options, but it's still not overwhelming. A good thing to fuss around on while watching hockey or what have you. Kid Artillery (who just turned twelve and is enjoying playing cello in orchestra) played with it for an hour earlier this week.
