Kong toys are just about the only things that I have gotten that truly are indestructible. Too bad my dogs seem to be offended by the odor or texture and only ever touch the one you can put peanut butter in (and only when there is peanut butter in it).
Bark Boxes are the only kind of "subscription service for a monthly box of crap" I find actually worth it because I get plenty of toys they do like and it doesn't matter that they get ruined because I'll just be getting more anyway.