Row 1: Sc in 2nd ch from hook and each ch across.
Row 2: Ch 1, turn. Sc in each st across.
Rep Row 2 until piece measures about 12 in. (30.5 cm) from beg.
Next Row: Ch 3 (counts as 1st dc), sk next sc, work 1 dc in next sc, *sk 4 sc, (dc, ch 1, dc, ch 1, dc, ch 1, dc) in next st – Shell made; rep from * across, end last rep sk 4 sc, 2 dc in last sc.
Next Row: Ch 3, turn. Sk next dc, dc in next dc, *work Shell in center ch-1 space of Shell; rep from * across, end 2 dc in last dc.
Rep last row until piece measures about 17 in. (43 cm) from beg.
Rnd 1: Work 3 sc in first ch, join with sl st in first st to form a ring.
Rnd 2: Ch 1, work 2 sc in each st around; join with sl st in first st.
Rnd 3: Ch 1 *sc in next st, 2 sc in next st; rep from * around, join with sl st in first sc.
Rnd 4: Ch 1 *sc in next st, sc2tog; rep from * around, join with sl st in first st.
Cut yarn, leaving a long tail. Thread tail into large-eyed blunt needle, sew around edge of Button, pull tightly to gather, fasten off. Use remaining tail to sew Button to Purse.
Fold lower edge of Purse up about 6 in. (15 cm), and seam sides.
Sew on Button. Use space between shells as a buttonhole. Weave in ends.
Make a ch about 57 in. (145 cm) long.
Rows 1 and 2: Rep Rows 1 and 2 of Purse.
Row 3: Rep Row 2.
Sew ends of Strap to inside of Purse.