AngelDust has this skin out for 99L called Santa Babe. The dress is in a lucky chair @ Sassy. And the hair is from Tameless and its on Marketplace for free.
Skin: Santa Babe 99L @ Angeldust http://slurl.com/secondlife/Jazz%20Island/146/211/22
Hair: Ellie (Free) by Tameless @ Marketplace https://marketplace.secondlife.com/p/FREE-Tameless-Ellie-Mega-Pack-short-hair/459495
Dress: On Track (Lucky Board, 10 minutes) @ Sassy! http://slurl.com/secondlife/Sassy/59/57/34