Left hand, a couple inch long scar from brushing my hand against a thumbtack sticking out of someone's pocket (?!).
Left middle finger, first knuckle, a pocket knife slipped and I got myself with it. There's also a mysterious arrowhead-shaped thing on the front too, I have no idea where it came from.
A few inches below my right knee is a small indent of scar tissue from when I fell off a bike and landed on a hell of a lot of pebbles.
The bottom of my left foot has a scar from when I fell off a clubhouse as a kid and knocked over a steel shooting target that promptly came down on my foot. First time I got stitches, too.
There's also a couple almost unnoticeable ones on my arms, from various things.