It's a beer tap handle. Funny thing is it has the same thread as the shifter shaft, That was the easiest upgrade I ever did. I'm planning on cutting a sleeve off of an old flannel shirt and attach it ala shift boot. It will cover some of the fore arm and the full length of the shifter shaft. Add a few rips, a burn or two, and a few (fake) blood stains. Viola...
My wife told me no skulls on my bike, so to be reasonable, I kept it to eight skulls...a Skeleton shifter would really get her panties in a bunch...LOL. cool...
When my wife says no way to an upgrade on the bike, I do it anyway and then take her for a ride somewhere a lot of bikers hang out and let her listen to the "Ooooh cool" talk till she acts like it was her idea to do the upgrade... LOL!!!