Mastodawn

There’s enough people surgically implanting small magnets into their fingertips for a surprisingly detailed Wikipedia article to be a thing:

Also some interesting, mostly¹ SFW but not for the faint of heart, images of the DIY surgery:

Images

(Note: the images are unrelated, this isn’t a before and after)

¹ meaning you will probably not get in trouble in most companies, there’s a little blood and that’s it