I got a pair of (now) 6 day old brand new ones (cancerous tumor removed). 3-4" long each, beltline/abdomen. Lots of ugly bruising atm too. Hell, for all I know a poster here did the surgery.
That's 6 new scars in the past 3+ months, and 13 total that are all fairly easy to see. Probably actually more than that, just can't remember them all off the top of my head.
I personally don't believe any of them are "cool". The knee scar is a good story (which I have told here), but it's also a very visible reminder of My Worst Decision Ever.
A lot of miles on this ol' bag of bones...