Amazon has Bergamot Oil: http://www.amazon.com/Bergamot-100-Pure-Essential-Oil/dp/B00181A96A, but in using it you need to be awful sparing it seems. You can just buy the actual oranges too: http://www.24hourbestbuy.com/bergamotorange.html but that looks hideously expensive.

We definitely had glow in the dark stars on our bedroom ceiling when we were little (when I changed rooms, I actually put them up randomly and spent a while looking for constellations - there is still a jester and a dagger there, if you know where to look), it reminded me of this guy: http://www.reddit.com/r/predaddit/comments/ts2wr/just_finished_the_ceiling_in_the_babies_room_the/ - unfortunately I'm not that awesome.