The one I made here is the only barrel pizza oven I've ever seen. It's not hard to make just a bit of measuring,cutting and welding.
Ugly Drum Pizza Maker again. - The BBQ BRETHREN FORUMS.
Here's the pizza. I took a round ring of steel and welded a round circle piece to the bottom then cut the fire brick with a 4" diamond blade and added bolted bearings to it so I could turn it. Would have and maybe someday will add a rotisserie moter to it so it will turn itself.
Not to change the subject but thought I would show you my Ugly Drum Pizza Maker too. If you look close you can see the pizza in the second pic. It also has a slide out shelf that is what the handle on the front is for. Whoops my mistake that was the round firebrick not the pizza.