"Mouthed" Teapot

Here's a new shaped teapot I made just recently, I like the mouth. It's the first "mouthed" teapot I've ever done and it came out nicely in my opinion. Although I noticed after I made it, looking at other mouthed teapots, this one has a rounded mouth instead of coming to a point, I think this may hamper is pouring efficacy (there's a word I hardly ever get to use) I'll post about the results when it's fired and ready to use. Also, I gave it two thumb rests, a bit affectatious but I like the over all balance of two. Any comments? Actually, speaking of thumb rests, I could use some help in that department. I've seen some really beautiful thumb rests, mostly on mugs, that kind of seem to "grow" out of the handle and body, I'd like to try that, but I'm not totally sure how it's done. Any suggestions?