For the clean, sharpen, and oil a shovel, it probably HAS to be a shovel.
However, there are two BBs that might apply. You can put a new handle on a
wedge handle tool (including a fokken hoe) or you can
remove rust, clean, and oil a hand tool.
Maybe it could be added to one of the sharpen lists, but at this point, most of the BBs are fairly fixed - especially with the book
project moving forward (and the Kickstarter). A few months ago, I asked if a Peavey could be added to the pin handle tool list and that was granted.