Costume Debut: Aeternitas 2011
Morfin Gaunt was a new costume for the first night of Aeternitas, and there was a lot of work put into it. Clothes had to be bought from the Salvation Army, washed, torn, and muddied. And of course props were integral: the Peverell ring, Slytherin's locket, handcuffs, a dagger, and a snake. The snake was most important, though certain people kept trying to steal it, culminating in Irvin performing fellatio on the rubber snake at a post-Fashion-Show dance party.
Irvin freaked out even the staunchest of fans with his popping eyes and harsh random yelling. However, not everyone understood the costume right away. One fan's first guess was not Morfin, but "Draco, fallen on hard times, and suddenly into bondage." Irvin honestly did not expect that to be anyone's first guess.
The night ended with an impromptu pool party, still in costume. This was the most fun Irvin had at Aeternitas, despite a certain enraged Hufflepuff body-slamming him and trying to drown him unsuccessfully in a "Horcrux Hold!" Irvin will forever have a phobia of flying Hufflepuffs now.