You could probably use a crochet hook to bring them up as far as you can and then pull them to the inside of the hat and sew them to make sure they don't unravel further.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry