Red Ant did those, and will have to list them out here since I don't have a record of that.
Here they are:
Jeff Reuben - Reuben Sandwich, Extra Pickles
Stu McArthur - Stu, Get Off Her!
Kristof Robertson - Pissed Off "Lorena" Bobbitson
agrimorphee - amphigory
Mikey Squirrel - Nike Girl
Invisible Boy - Transparent Girl
belowaveragedave - above mediocre davinia
Jack Wilson - Local Celebrity
k1chyd - I hear the secrets that you keep...
Max Power - Mack's Hour
the_conqueror_of_parodies - Atilla The Hun of Writing
and the craziest name anyone got went to...
Matthias - Matt the Hat Rack, Fat Jack, Frat Back Of The Rat Pack
I also made McDonald "Burger King", Dude111 to "D00D!!!" and a few others. Most anyone who was on last night also got a name change.
Next year will be a much simpler gag: this one was super time consuming (and I'm still not done changing names back) but well worth it.
Ant