Here is a simple knife lanyard with a skull bead made by a friend of mine in Thailand. The bead is called the Triceratops and it sits between two diamond/lanyard knots. This lanyard is on a Strider SnG, but can be made on any knife with a lanyard hole. Knife lanyards aid in knife retention during use as well as retrieving the knife from a pocket or sheath. Price without skull bead $5 plus shipping.