Jewellery; making rabbit's foot necklace?

You could take wire, and tightly wind it in a coil around the top 1/2" (give or take) of the foot. Then make a loop over the top (with enough room to slide a chain through), and start wrapping the wire into a second layer of coils. When finished, silver solder the end of the wire in place. You could also take small cups (or large thimbles), solder a ring to the top, and then epoxy it to the foot.