Just chewy bones or any chew toys? Dog.com has a lot of chew toys. I have given mine Nylabone DuraChew Stick. I've had several shepherds that liked the Nylabone Puppy Ring Bone. Chuckit ball lasts a while and my shepherd likes to chew on it for a while sometimes.
"The wolf also shall dwell with the lamb, and the leopard shall lie down with the kid; and the calf and the young lion and the fatling together; and a little child shall lead them." Isaiah 11:6