Derr's handles are as eye-catching as his blades. Conservative in form, they employ exotic woods, bone, and horn. A typical handle consists of a nickel-silver butt cap; the main body, which may be made of staghorn, oosic (a bone taken from a very personal part of a male walrus), or another exotic bone (a walrus jaw or the legbone of an African waterbuck, for example); a thin nickel-silver spacer; an exotic-wood inset (black palm, box elder, California buckeye, to name a few) with a small cutout for your index finger; then a small nickel-silver hilt. In case you want to use his knives, go ahead. The handles are treated with a compound called Nelsonite, which makes them impervious to anything--water, blood, Vienna sausage--that you might encounter in the outdoors.