Mine was missing some stuff too. One pole has a flimsy brush and I left that. The other was missing whatever was supposed to mount there. From pictures I've seen of the real thing, it should have been a mop. I found one at sportsman's warehouse for three bucks. It's a shotgun bore mop. The only problem is thread size 5/16x27. I've got 5/16x24 taps, but 27 is an odd one, so I ordered one from china. The pole's threaded ends are metric - I've forgotten now - something like 6mm. Nope, just checked - they're 5mm.
The bucket I also ordered from china - for a few bucks I figured it was worth a try. If you do a search for fairy garden or doll house or something like that you should find them.
Are you saying there are supposed to be two buckets?