I'm down for it. I'm planning to make one today. What are the parameters of the challenge?

not sure, Hadn't thought that far yet, wasn't sure anyone would want to. might wait until Friday and give a few more people the opportunity to join. Should it be general puppet to showcase talent or more of a junk puppet challenge where we have to build it specifically out of found objects?

I'm working on new puppets right now - but they are for a live show, so no chap materials or ultra-fast builds. I'll live-stream on twitch. The next official live stream will be at 11.-12.04.2020 starting 10 AM (local time Germany -it will probably run for 6 to 8 hours. I'll work on some parts before that - like cutting fur because there is not much to see. If you want to be notified when I do those streams follow me on twitch:
https://www.twitch.tv/tioh

Tioh is live streaming right now as of 7:56 AM USA Central Time. He is working on a polar bear puppet. It is great to see his process.

Here is my new polar bear puppet.  It took about 32 hours to build this puppet (not counting the time my 3d-printed worked on the printed parts, like head base, teeth, nose, eyes, and eyelids).
 
If anybody is interested in how I build it: a recording of my live-stream is available right now (Twitch deletes the videos after 14 days) https://www.twitch.tv/tioh/videos

that is awesome.