So over the summer I spent three months working at a summer job and thus had no authority of my Legos. When I left I had everything important put in drawers or boxes, including my UCS Tumbler. When I returned I found that someone had moved most of my boxes/drawers which included the unit that had my Tumbler. Luckily they had the sense to take the Tumbler out of the drawers for moving them so it didn't destroy itself but unfortunately they didn't think to put it back in, so it sat on my Lego table for about two months. When I returned home I nearly had an aneurism from the dust that built up (there was almost no dust but I am very OCD about the light white film on my Jet black tumbler). I put it away after making an attempt to clean it off with little success but recently was prompted to take it out and am now bothered yet again by the gray-ish tint. Does anyone know a good way to remove the dust? I tried warm water and a tooth brush but I couldn't get around the bases of the studs very well.