Here's one I used several years ago at a craft fair where you could not have side walls over 4' high. They wanted a more 'open' concept rather than have a bunch of Ez-ups with side walls blocking views. My hubby graphed out the display in PVC pipe and I used sheer curtains threaded onto the pipe sections.
It was very easy to put up. The second pic is a wider view, during setup. In the right corner, I set up 2 of my knitting machines and did demos. It still allowed me to hang some of my lightweight sweaters and such along the back top bar (not shown).
It wasn't my preferred way for display, but it worked quite well. The shorter side walls were very nice for most of the crafters.
~ Marge ~