>>8351248They are Uncle Milton's Star Wars Xcavations. You can get them for about $5 a piece on eBay now. They come with some nice sand and a Star Wars species skull inside (which are actually pretty nicely detailed although too big for 1:12 except for the Hutt skull). I bought a handful of them with the intention of painting them orange like the one on the left in my pic to mimic the kyber crystal crates.
>>8351258I definitely don't mind building it. It's basically the thing I've been wanting for a long time to display stuff with but like I said, I just keep blowing money on figures instead.