I found the "Hello Kitty" pattern here from 4Hankins Crochet.
I just dc around the hair tie until full. (2 dc in dc, dc in next) around, join. ch 1, (sc in next 2 dc, 2 sc in next) around, join.
(ch1, sc in next 6, turn. ch 1, sc in each sc. turn. ch 1, sc in next 2, sc next 2 together, sc in next 2, turn. ch 1, sc in eac sc., turn. ch 1 sc in next 2 sc, skip 1 sc, sc in next 2, turn. ch 1, sc in each sc, turn. ch 1, sc in first sc, sc next 2sc tog, sc in first sc, turn. ch 1, sc in first sc, sk sc, sc in next sc, turn. ch 1, sc 2 sc together. fasten off. )
Skip 6 stitches and join yarn in next sc making sure you are on the front side. Repeat from ( to ) above. I spot glued the ears down at an angle but they don't have to be.
Tongue: with red: chain 2. 2 sc in second 2, turn. 2 sc in each sc, turn, sc across, turn. sc in next, sc 2 sc tog, sc in next. turn. sc in sc, skip sc, sc in next. turn, sc 2 together. sl st around to make sturdy.
She knows the Elmo and Hello Kitty are on their way but I decided to do the dog last night. Hope you enjoy.