My halfling daggermaster rogue in our current game (we're playing Revenge of the Giants) is named Nebin Hamstringer. I'm playing him as a redneck halfling from the hills. His clan had to figt off giants, so killing giants is what he's good at. Feats like Underfoot to let him move thru big creature's zones, the Close Quarters utility that I always envision as him jumping and wrapping himself around something's leg, then stabbing over and over till he hits the femoral artery. Or jumping on the ir back and stabbing at their neck.
I gave him a Badge of the Berserker, Vanguard dagger for his offhand weapon and a Horned Helm, so he's really nasty in a charge. My DM keeps telling me I'm playing a Brutal Rogue instead of an Artful Dodger, but I play it off as he just doesn't think much of all these things that are bigger than him (which is pretty much everyone) and he just walks right past 3 enemies and ducks their attacks to get to the one he really wants to stab
Someone mentioned the necklace from Your Highness. One of our players suggested taking a trophy from a giant we had killed so next thing you know I've done some cutting so I can make a soup. One of my favorite memories of this game so far is offering Obenar some giant testicle soup and my wife saying how she and the rest of the group are standing behind him waving their hands and shaking their heads no.
In an OWoD Mage game I had a character named 8 Ball. Magical mishap in a bar had one of his eyes end up replaced by an 8 ball from a pool table. He could see thru it and it could spin in his socket and he could see in all directions. This was several years before the Harry Potter series started, so he was not based on Mad Eye Moody
We were making characters and I asked the ST if I could get more freebies for flaws beyond 7 so long as I played them all. He said sure, so I made a mage who was very powerful, but had basically every mental issue in the player's guide heh. I sat at the table literally drooling sometimes, staring into space or speaking complete gibberish. He had rare moments of clarity where he cast the occasional spell and pulled the party's fat out of the fire. Altho one time he apparently turned all the water in a 3 block area into LSD. During Mardi Gras. On the moon. This included the water content in all the alcohol being consumed. It was also contagious so it quickly spread beyond the 3 block radius by touch. He was kind of a ridiculous character, but he was lots of fun to play.