My Granny Halter is complete, and pretty darned cute, if I do say so myself. The only other thing I might do is get some beads to put at the end of the tie (to give it a little weight and whimsy).
The yarn is Knit Picks Shine Sport, in a whole raft of colors. I used almost two complete balls of the apple green, and about forty percent of one ball of each of the other colors. Size 3.75 mm (F) crochet hook.