is is easy: just put glue on one side and attach to the other! while it dries, comb and roll it until you like the shape (you can use as a guide the picture of rarity in the papercraft, i did that.)
also i used strong glue and pasted sections of her hair to her chin...see the finished photo for more clues. also,you can ask particular questions here, i will try to answer the best i can.