A good cup can be made by taking a horn, cutting it to the size you want, then cut a round plug roughly the size of one end or the other. Beveling the edges of the plug where it will go into the horn helps. Soften the horn and insert the plug. Let the horn cool. If you cut the plug closely enough it will be water-tight. Sand the edges of the plug to match the side of the horn.
Another sort of cup can be made by leaving a "tail" of horn attached to the upper edge of the cup. Be careful to not leave the tail too thin or too thick, too wide or too narrow. This takes some practice, but if you leave too much, it will be harder to soften and bend to shape. If you leave too little, it will not support the weight of the cup when it is full.
Using and working with Horn - Making a Horn Cup. Copyright © 1996,
2001 I. Marc Carlson
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