At first I wanted to get fancy and use actual props from a hobby shop - these though had sharp edges and made me think twice. I then went the opposite direction and cut a thick piece of wood to serve as my prop. I grabbed a mug out of the kitchen and traced two circles on the ends. I then took a juice glass and traced it at the center. Then I used a ruler to connect the outsides of the circles to the middle. After I cut out the general shape, I drilled a hole in the middle with a 3/4 inch drill bit. Then I took a three inch bolt with a fender washer and inserted it into the front of the plane from the inside. Then I placed a nut on it to hold it to the frame. Then I slid on another bucket lid with a 3/4 inch hole drilled into the center (I painted this black). After that, I put on another nut, the propellor and then another nut - I started to run out of room on the bolt, so I plan to replace the 3 inch bolt with a four inch later.