While it's not better than getting 10 free energy, the new Frontier Shovel from FrontierVille is an exclusive item that lets you make 10 free digs in Treasure Isle. But what it technically does, is make each of your next 10 digs require 5 less energy. And since each dig takes 5 Energy, well, you get the idea. And they're really heavy with the emphasis on the digs, because that's all you can do with it. You can't cut trees or ferns or search a lodge with it.