>I don't recommend it since there's a fire hazard using the melter, and a >danger that students will burn themselves working the hot wax. In a >way, it's like working with hot glass.
For quick batik or encaustic technique on heavy paper---
Warming trays are a possibility. Cover with foil and lay the fabric
directly on the foil. It is warm enough to melt the crayon as you draw.
if the tray is a bit too warm for comfort, a potholder can serve as a pad
both to hold the fabric and protect your drawing hand.