Both of my guys chewed/ate right through bullysticks like they were candy. I think they lasted all of 20 minutes. Yeah, they're dried cow penises, and they will STINK UP your house/furniture/dog beds/carpet/rugs once they start getting moist from the chewing. The smell is NASTY times 10 and will permeate every inch of your house for days.
We let them have a pressed rawhide for about 30 minutes a pop, supervised. That's not long enough for them to eat any of it but long enough to satisfy their chewing jones. Booda Velvet bones and Nylabone Edibles also. Kongs are a great idea but our dogs end up licking and licking and licking to get the treat/PB out instead of chewing, and all that licking gives them SERIOUS gas.