This is a skirt I quickly made for my 7 months old daughter.
It is made of two identical fromt/back pieces seamed togeter. I used straight needles because I didn't have circular needle for right size but sure you can use circular/dpt without seaming.
The wavy edge is simply from repeated k2tog and yo, k and switching to second color on WS gives you stitch-like line by the main color from the last row on RS. I think that looks cute.
Caiden is my friend's baby who are always so cute in brown outfit with brown tights.
Size: 12 months
Material: MC(main color): Lion Cotton-Ease (brown), CC (contrasting color): Bernat Bamboo Natural Brand (beigh) , tapestry needle, 3x stitch markers. (optional: size G crochet hook for waist string)
Needles: US8 and US6 straight needles
Gauge: 16sts x 22rws = 4 x4 inches with US8.
Skirt (front and back): This will be knitted from the bottom. (MC) with bigger needle Cast on 72 sts.
row1: k to end.
row2: p to end.
row3: [k2tog 3 times, (yo, k1) 6 times, k2tog 3 times] repeat  3 times more.
row4: Switch to CC and k to end.
row5: k to end.
row6: Switch back to MC and p to end.
row7: [k2tog 3 times, (yo, k1) 6 times, k2tog 3 times, place marker] repeat  2 times more, k2tog 3 times, (yo, k1) 6 times, k2tog 3 times.
row8: Switch to CC and k to end.
row9: k to end.
row10: Switch back to MC and p to end.
row11:[k2tog, k to marker] repeat 3 times more.
row12: p to end.
row13: k to end.
row14: p to end.
Repeat row 11-14 8 times more, 36 sts remains.
For waist band ribbing, with smaller needle [k2, p2] repeat to end for next 8 rws, BO.
Finishing: seam each side of front/back, weave in loose ends. (for optional waist string, make 30 inches of chain with crochcet hook and weave through the waist band)
Well, this is the first pattern I've ever written, so I appreciate your comments and suggestions.