A couple of pictures I found on the internet and basic edited to use as wallpapers. Click on the images below and then magnify to save at full size. I have a dual boot system, one for everyday pc stuff, the other for music making, so I get to see both every day. Enjoy.
The Memorymoog works best, for me, using the 'fill' option on Windows wallpaper personalize page. I forget which setting works best for the Polymoog, though I'm sure you'll find the best option with a bit of experimenting, but a plain black background is a must for the best effect.