You should be able to make custom Grumpy Gobbler Stages. It would cost 250 crowns, 2500 gold, or 5 energy to make 1 stage. You can have 15 stages if you are a non-member. You can have 30 stages if you are a member. You have a limited amount of blocks if you are a non-member. You can get an ∞ amount of blocks if you are a member (∞=infinity/infinite). You can get pet exp from the custom stages. If you created a stage and someone got 1-4 exp from that stage, you get ¼ of the exp to any pet you chose (fractions of exp can't be added on to a pet; it has to be a number with no fraction). Imagine how cool this would be! ☺☻☺☻☺☻☺☻☺
Interesting, but what if someone made it impossible to win? Like putting the fort to destroy at the very back of the map? Other then that that sounds like a pretty fun idea.
