Did you know there are already specific sweet spots to aim for when gathering items?

While you will still get a fair number of other items mixed in (especially if the item you're aiming for is a high level item), aiming for those sweet spots does greatly increase your chances of obtaining more of the item you want.

In the case of Sun Lemons, aim at -2 and then chop about halfway down the swing meter.


Otherwise the potion idea is interesting.
I personally wouldn't use something with those sorts of restrictions because I want +1 items now... but interesting idea. ^^