Many already know the some bugs are found from hitting your stones around town, some also know that daily one of the stones will drop Bells. Yes, BellS!!, not singular.
These stones can be hit multiple times for a short period of time with your shovel to drop increasing amounts of Bells(Like some of the Coin Blocks in Super Mario). Now you may notice that as you hit the stone you get knocked back with each hit, after three, being too far back to contact it again. This will take out of your time to hit the stone for the higher Bell amounts to drop. This can be resolved simply:
If the stone happens to be next to a tree, wall, or ridge that you can put yourself between before hitting the rock then this will prevent you from being knocked back to far to hit the stone. If you do not have a 'wall' already present to act as a barrier you can dig a hole behind you and it will act as the same as any other of the 'wall' options.
If I remember correct the bell amounts consist of 100, 200, 300, 500, 1000, 2000, 4000. 4000 is the highest I've seen yet, the bells fill the spots around the stone. I've not managed to get the eighth bag of bells to drop yet.