Here's the secret:
When the animal pees, you will only see a tiny little circular spot on the surface. Underneath, though, is a little mountain that has been turned to dust. Picture a volcano.
So... the best way to clean these pellets is to use a flexible cookie spatula. Gently push the whole pellets to the side to uncover the pee volcano and then lift that wood shaving volcano shape up with your flexible spatula. You'll find you have a nice clean area, with very little fuss.
If your bun likes a softer surface, we have very soft aspen bedding that can be put on as a "top dressing." It makes all this more affordable too. Can't beat that!