Sharpie holder for pegboard

I find I often need Sharpies (small permanent markers) while working on bikes, and previously have kept my Sharpies in a pair of hooks, which was always pretty tenative, the markers would always fall off, so I've wanted to make a proper holder for a while, and I'm still getting familiar with Fusion 360, so this was a perfect application. While this works well for holding Sharpies, it could also be used for many other objects with about the same dimensions.

I was going to start with my [pegboard 2 position blank](https://www.thingiverse.com/thing:2832370) - but realized that this was an opportunity to redo it from scratch and make it a fully parameterized model, especially since the original design didn't quite fit all the pegboards that I used, so I wanted to be able to fine-tune the dimensions.

I also sized the holes a bit large for the Sharpie body, as the silver Sharpie works best when it's stored inverted, so I sized all the holes for that. Of course, since it's parameterize