You could also check out this wig:
There's this rainbow colored wig from Arda:
I think maybe this one might be too long, unless thats ok with you.
They do have another one, but that one is not heat resistant, but usually Arda's wigs are. But if you were just going to style it using hairspray then you're fine.
Hopefully this helps somehow
Anime North 2015
Ezio Auditore, Assassin's Creed II
Sailor Venus, Sailor Moon
Jack Frost, Rise of the Guardians
Elise de La Serre, Assassin's Creed Unity
Elsa (coronation dress), Frozen