Trace around flat base of bookends onto WS of brown felt. Cut pieces along marked lines and glue 1 to each bookend.
BODY BACK (make 2)
Cast on 6 sts.
Work in Rev St st (k on WS, p on RS) for 15 rows. Sl sts to a holder.
Rep to make a 2nd leg, but do not sl sts to a holder.
Next Row (WS): Knit across 6 sts, cast on 10 sts for body as follows: sl last st worked back to left hand needle, k this st but do not drop from needle, transfer new st from right hand needle back to left hand needle (1 st cast on), continue in this way until 10 sts have been cast on, k across cast-on sts, then k 6 sts from holder 22 sts.
Continue in Rev St st on 22 sts for 11 more rows.
With WS together, seam inside edge of legs and body.
Wrap piece around one bookend, pin legs and body together at sides. Insert a small amount of stuffing between knitted piece and one side of bookend. From RS, whipstitch pieces together or work single crochet evenly spaced through both layers along sides and top edge.
Work same as Back.
TAIL (make 2)
Cast on 8 sts.
Row 1: Sl 1, k 7.
Row 2: K2tog, k 6 7 sts.
Row 3: Sl 1, k 6.
Row 4: K2tog, k 5 6 sts.
Row 5: Sl 1, k 5.
Row 6: K2tog, k 4 5 sts.
Row 7: Sl 1, k 4.
Row 8: K2tog, k 3 4 sts.
Row 9: Sl 1, k 3.
Row 10: Cast on 4 sts, k across 8 sts.
Rows 11-30: Rep Rows 1-10.
Rows 31-39: Rep Rows 1-9.
Row 40: Sl 1, k3tog, pass sl st over.
Sew Tails together, stuffing lightly before sewing closed. Sew Tail to stuffed side of Body Back.
Cast on 17 sts. Work in Rev St st for 15 rows.
Bind off 3 sts at beg of next 2 rows.
Work even on rem 11 sts for 15 rows.
Cast on 3 sts at beg of next 2 rows.
Work even on 17 sts for 15 rows. Bind off.
With WS facing, fold piece in half. Seam sides (or work single crochet through both layers), stuffing lightly before sewing closed.
Sew Head to stuffed side of Body Front.
From blue felt, cut 2 circles slightly larger than eyes. Glue eyes to felt circles, glue circles to Head.
From black felt, cut 2 crescent-shaped eyebrows, glue to Head above eyes.
Cut 2 crescent-shaped horns from yellow felt and glue to top corners of Head.
From black felt, cut 2 circles for nostrils and glue to Head.
From red felt, cut tongue. Glue a narrow strip of red felt to center to tongue. If desired, shade strip lightly with marker.
From white felt, cut 2 small squares. Glue to Head, one on either side of tongue.
From green felt, cut 2 strips, each 2 in. (5 cm) wide. Glue strips around lower ends of back legs.
From green felt, cut 2 strips, each 1 1/2 x 3 in. (3.5 x 7.5 cm).
Cut notches along one short side of each strip, glue strips at base of front legs.