Just a couple things I thought may be easy to implement and really useful...

One would be an object to count and display the amount of gralats in your farm... something that could just take all the gralats in the level and tell you a total amount? Maybe on touch?

Another would be an item that, when a player gets killed in a level, warps them to its location - a method of controlling and removing people who had died in a home-brew event style game.

Anyone else have an idea?