IF they don't increase the amount what I did for multiple wigs was I made one listing for a few of them and in the description field I listed out the separate cost for each wig. You could try that.
~2015 Convention Schedule~
Anime Boston, Boston MA
CTcon, Hartford CT
Another Anime Con, Manchester NH
Loki Laevatein - Kamigami no Asobi
Sinon - Sword Art Online: GGO
Simon - Tengen Toppa Gurren Lagann
Sheik - Legend of Zelda: OoT
Russia - Hetalia (Standard, Bloody Sunday, and School uniform)
Washu - Tenchi Muyo
Open for Commissions!!