You could make a custom Fathead at fathead.com. They have a variety of size options and print on a vinyl material with a low-tack adhesive that allows you to stick it to most non-porous surfaces. Probably wouldn't stick well on a fabric cube wall, but you could leave the backing on and just pin it up if that's your only option. They are also removable and reusable. What I like about them is that you can get them with a dry-erase surface. It's great for E-R diagrams.