Not sure what you mean exactly on 'wide mouth' but I make and sell. You can find some of my work at PuppetSmithArts.com". I have a lot more inventory right now, I am just waiting until after PUPPETCOrN'. Then I'll post them on Etsy.
"Wide mouth" seems to be a term invented by non-puppetry hired writers and/or hobby bloggers to refer to muppet-style puppets. It's something you'll see pop up in a lot of searches for puppets, despite not actually being used by anyone within puppetry itself. I assume it has something to do with muppet-type puppets having the appearance of a 'wide mouth' when the mouth is open and the people who use the term not knowing or bothering to find out what people really call them. It's a surprisingly popular search term.