Are there other Castrators on the market that Castrate larger animals?

Yes there is. I know of two. One type is a small device that you slip onto your hand and stretch the tubing with your hand to tighten. The other one is somewhat similar to the EZE, but you have to stretch the band with your hand to slip the scrotum through. No matter which one you use, the end result is the same. It’s just a matter of personal preference.