This is a vintage pattern I have been using, I have rewritten it to work in the round.
Yarn: 100 gr. worsted weight
Needles: 3.75 mm (US #5) long dpns or short circular; and a longer circular.
2 safety pins or stitch holders.
Size: this fits my 5yo, but it will easily fit about a 3-6.
Cast on 70sts. Join. Work 3" in K1,P1 ribbing.
Next row: Rib 10, Knit 50, Turn. Put remaining 10 sts on holder.
Next row: Purl 50. Turn. Put remaining 10 sts on another holder.
Working on centre 50 sts. work back and forth in rows in stocking stitch until entire piece from beginning measures 9", ending with a Purl row.
Short row Head shaping:
1st row: K34,Sl 1, K1, psso. Turn
2nd row: P19, P2tog. Turn
3rd row: K19, Sl 1, K1, psso. Turn
Repeat row 2 and 3 until all 20 sts are on one needle, ending with 2nd row. Cut yarn.
Face ribbing: With right side of work facing and using circular needle long enough to fit around face opening, rib across 10 sts on first holder, pick up and knit 26 sts along side of face edge, knit across 20 sts, pick up and knit 26 sts along other side of face opening, rib across 10 sts on 2nd holder. Join, and place marker for beginning of round.
Work 9 rnds of k1, p1 ribbing. Cast off loosely in ribbing.