I'm now an official volunteer at the Chabot Space Center in the Oakland hills, and my specialty right now are the three telescopes in the observatories (or as they say there, "on the deck"). It's a fun job -- mainly telling kids about and helping them view through the smaller scope, built in 1883 -- and still working great -- but also showing them the two larger scopes, including the largest refractor telescope open to the public in the US. I'm debating getting my operators license which requires a lot more training, and as one volunteer said, "passing the scariest test I've ever taken."
