When I originally set this up, I added the two vertical posts on each end, intending for these to frame my ski rack. With those up I aligned two 8" 2x4 scraps next to a set of skis and notched the pieces for a holder that I'd make. Here's a semi-side view.
These were screwed in, and one they were, I rounded a piece of plywood off to serve as the holder. However I didn't want to leave it like this.
I hand guessed at a handle, and then used a jigsaw to cut out the handle pieces. With a router, I rounded off all edges and then a combination of hand and power sanding the things smooth. This will need to be finished.
With that done, I had a ski holder.
I wasn't sure about poles, and for now they're hanging on the skis. Not sure if I want to add anything to the middle. Once I was done, I did it again.
Ski rack semi-complete. Now to sand and stain it tomorrow if the weather holds up.