I bought all new Galadriel wigs this year after wearing one for over 16 hours at Dragon*Con, including the Middle Earth dance party.
I show up at 3:18. Just look how that wig is sliding back and forth along my back!
Click to view
Afterward, this was the underside of the wig:
New wigs are from Wilshire wigs:
http://www.wilshirewigs.com/godiva-by-wig-america-godiva.html Synthetic hair, skin top. This is not a lace-front wig. I don't need lace front because Galadriel's hair is not brushed back from her face.
I bought one for the White Council, LOTR Galadriel, and one for wearing with hoods up. I don't like wearing the same wig for more than one day without detangling it, to minimize the chance it will be ruined (and no more dancing in them). Detangling takes a LONG time, so I don't want to do it at a convention.
I am experimenting with different methods of getting curl I want.
Spiral curls
Braids
Braids with a stiff 3/8" rope for bigger curls
Back is one big braid which will remain in place so hair won't tangle under hoods.
Braids have worked in the past (see icon), if I got them in soon enough. I hope two months is enough time!