One of the many great ideas on the FliteTest YouTube Channel. A guy named Denver appeared in one of the videos. He was attending a Flite Fest and showed Josh an idea for using pop rivets as wheel bushings. In the video Josh used a pair of pliers to separate the rivet. I came up with this alternative. In my case I was using large (4″) wheels and the standard axle was too small. So I put a couple of these in each wheel to make a perfect fit.
You need a few pieces of scrap wood, some rivets, and a hammer. The rivets I bought were 3/16″ diameter, 1/4″ and 1/2″ length. Use the size that fits your wheels. Drill a hole in the scrap wood 7/32″ all the way through. Put the rivet in the hole, tap it with the hammer to separate it, and you have one bushing. Depending on which wheel you are using, you may need to open up the axle hole to 3/16″. Repeat as needed.