My friends and I went to the Bristol Renaissance Faire this year as a Final Fantasy group and I was the Black Mage! Tada! I changed this costume up from its con version by using a black wig and elf ears (reminiscent of the Elvaans from FFXI). My other friends were a Cannoneer, a Red Mage, and a White Mage (who was a Miquote). People really seemed to like our group, but I did end up getting heat exhaustion since it ended up being hotter than we thought it would be. u.u
If I find a picture of all of us, I'll post it!
Photo by Brett at the Bristol RenFaire 2013