Mosaic Pottery

This is an older garden pot which I covered with pieces of mosaic glass, flat marbles, broken dishes and then grouted. It has worked out well for the aloe vera plant, since I don't need to water it that often.

I am wondering about making a special pot for my lemon and bay trees. I've been thinking about making a clay emblem with earth clay and stamping in the name of the plant and letting the clay take the curved shape of the side of the pot. Then I'd glaze and fire the clay emblem. Once out of the kiln, I was thinking it could be used as a feature piece in the mosaic work.

Does anyone have more experience at doing this sort of thing?