I was thinking That u can change it to like zombie,Skelly,Cow,pig,And maybe Pigmen.

I think it would be fantastic to be able to Switch What spawner's spawn After you Donate.
Maybe you could make it so that you have to pay Let just say 500 to 1000 Dollars (In the Game) to switch it.

Me and Probably a lot of people would like this to happen.

Thanks
DROPDEAD999
NickName-F4tal