Here is one of the two mugs that I tried a side firing on some shells. I was extremely pleased with it and have lots more for the next load.
This is the opposite side of the mug shown above. I have probably drank around 25 cups of coffee out of it already and it was just fired a 2 weeks ago from this friday. It works very well, and I hope many more come out like it in the future.
Here is the inside of an upside down mug with a pretty nice shell mark on it, and some sweet glaze drips
Here is a picture of the outside. You can see where that glaze caught on the under side of the ridge in the middle instead of the top because it was fired up side down.
Here is one of the underside. I put a piece of blue glass inside of the foot and it got so reduced that it turned purple and red in some places.
Here is the wild underside..... hope you enjoy!