I have been looking into this for a while, but usually only come up with “goth” claws that dont seem so functional, and look like a one way ticket to jail. These are meant for hair cutting, but i see box opening apps and others as well…
FingerWhack Razors
edit: Shortened link. Please have a look here on how to do this yourself (new software feature):
How to shorten a link to just a word or phrase. :gz: