Spider droids
One of my least favourite Lego Star Wars sets is the spider droid. There are three versions: 7681 from 2008 75016 from 2013 75142 from 2016 The last two are almost identical with the only discernable differences being the top/bottom turrents, the minifigs and the fact that the latest edition has a platform at the rear for a minifig to stand on. What I hate about these is the fact that they never stand up well - I'd honestly rather that the legs were held in with at least one friction pin at each joint so that you can place the legs. Otherwise, it takes ages to get all four legs on a surface without the whole thing toppling over. Rant over. Here are all three (I appear to be missing a clone droid from the middle set!).