I just saw an advert for one of those suspicious part-work things, whereby you can gradually build a collection of some kind of tat, with a special introductory price on the first issue and a hideous mark-up on all the others. Except that this one builds an orrery, and I want one.

I'm not going to buy the part-work. I might keep an eye out for an orrery to buy outright (there are probably build instruction out there somewhere, but while I could probably assemble one I wouldn't have the skill to build one from scratch).