Dang it!
So, I have an idea. I can’t travel so I’m not entering, but I’ve been “inspired”. 
I look through the WiPs, seems like nobody’s doing the idea – I’m stuck, the idea won’t let me go, I’m gonna do it.
If I get this up on Sketchfab before the 15th I won’t tag it #bcon22challenge to avoid it being mistaken for an entry. But I’m thinking of doing a WiP topic. Any problem with me putting that in the challenge WiPs category given that I’m not actually entering?
Edited to add: while following (or trying to) on Sketchfab everybody with WiPs in the challenge catagory I found a non-competing WiP topic, so I’ve put mine up.