I guess I was not aware that there was any other option, besides the rare pet cemetery I've seen on occasion. I suppose you could try to bury them in your yard if you have one... not sure if that is legal here as I have never heard of anyone doing it. It seems like it could end badly if you didn't get the body buried deep enough, and it would be a little creepy if you later found the remains when doing a landscape overhaul.
When we've dealt with pet loss in the past, the only options given to us were group cremation or individual, where you get the ashes back in a little container. I always say I'm not going to care about that and do the group one, but when the time comes and I'm emotional... I end up with the jar.