trebuchet alternative plastic parts

The trebuchet design seems the best out of what's on thingiverse but it seemed a little over engineered for a toy. I didn't want to find and buy 10mm tube so I decided to print them and they worked well. I also skipped on the m3 rod down the middle of the beam and instead used m3 screws at both ends. I was lazy and didn't design a new counter weight but thought the coin slot was a bit limiting so I cut away to add any weights I wanted to use.