good question,
I haven't seen one put there are so many designs like you say, who can tell.

It is easier to ask forgiveness than to ask for permission. Is that like the ends justifies the means? Not when it comes to copyright laws! Lol!

I have had a look around...are any of these similar?
I keep reading about on in ThreadsnScissors but I did not find one yet.

You mean like your little doggie purse? I think I can see how in positioning the fabric pieces, you could get it to be lined. I must say, I have not seen any of these done in the hoop in my internet wanderings. You must be enjoying this creative venture. Go for it!!!

OK, I'm curious. Would it work on both top and bottom of hoop and require a double flipping of the fabric to reach the finished product?
(Don't you just love a challenge?)

I have seen something like this before. Can't remember where or when though! The only difference was that the side seams were finished on an ordinary sewing machine. I hate having to hoop more than once, so for me, this would be an easier method. Also you would be able to make bags bigger than your hoop size. Good luck with your project. Regards Suet.

I have an old diskette by Husqvarna called Pretty Purses in the Hoop. Must be at least 13 years old. Zip and embroidery were done in the hoop, side seams have to be done using a sewing machine. I still use those designs or a similar method as I know it produces flawless results. Like you I enjoy coming up with different construction methods. I also use ITH techniques for things like two pocket flaps - best way to get them identical.

The idea of replacing sewing by ITH stitching is an old one, but the variations in shapes and construction are endless. Like car manufacturing, the idea may be the same, but the number of models is enormous (and my brothers think I am a complete moron not being able to distinguish one brand from another). And so is the variation in mugrugs and bags and soft toys.

But I bet someone will come up with a completely new idea somtime.