Are all the pieces fired? Are any fairly smooth? Try sanding lightly and
then burnishing with a stone ...like Maria Martinez...no glaze
necessary...beautiful surface when fired. I usually do this with coil or
small pinch pots. Also the surface can be carved. You can do a presentation
on the SW Indian pottery. It takes time to burnish and they keep very busy.
Only downside...they must be careful with their pieces, cause greenware
breaks so easily.
Shari in NY