Animated TSM Orrery
Animating something that just goes 'round and 'round isn't difficult per se, but it does require a bit of tinkering to get Milkshape, SimPE and the game to be on the same page. Thankfully, stuff like changing the anim's direction and speed you can do with BHAVs, you don't have to meddle with the actual animation for that, and that makes this much easier than it would have been otherwise.
@Klaartje, that's exactly why I'm going to make it so you can turn it off. I can just stare at it forever, too (which isn't good when I'm just supposed to check that an anim is running like it should and then get out of there so I can move on to the next one)!
@ritaxis, well, it was cloned from a statue, so Sims can view it, but that's all they can do with it. Now that I think about it, I might change it so that if you have FT, instead of getting enthusiasm for art (or whatever it is), Sims get enthusiasm for science when they view it. Depends on how many layers of BHAVs I have to dig through to do it (and how fed up I am with the thing when I get there).
@leefish, aww, but you can make other cool stuff that I can't! For one thing, I couldn't make a one-tile sliding door if my life depended on it. (I couldn't make any kind of door, or window, if my life depended on it. Pretty sure my game would crash on startup if I ever tried. )