I haven't too often commented on a particular tool or whatnot that I really liked but this one I thought was worth it. Recently I purchased an N Scale 33" Wheel Weathering Jig made by Minuteman Scale Models. It came and I just had to tighten a couple of screws and it was good to go. I did use a couple of rubber bands just to make sure the wheels were held in place snugly (anyone who has ever chased an N Scale wheelset across the floor will understand this precaution). I loaded the jig full of axles an sprayed away with the PollyScale Roof Brown.