mostly i just get lil pricks on the finger from a wayward needle or pin. i burned myself on an iron once, but that wasn't really craft related, i was just reaching over the iron that my mom had cooling on the counter to get something, and burned my arm. i got a nice blister...i still kinda have a scar. lol. sometimes when i first started crocheting, and my stitches were uber tight, and i have to fight to get the hook through, i'd end up w/a hook almost under my finger nail...that hurt a lot.