Video Tutorial

Green
Round 1: 6 single crochet magic ring (6 stitches)
Round 2: 1 increase around (12 stitches)
Round 3: *1 single crochet, 1 increase* Repeat around (18 stitches)
Round 4: *2 single crochet, 1 increase* Repeat around (24 stitches)
Round 5: *3 single crochet, 1 increase* Repeat around (30 stitches)
Round 6: *4 single crochet, 1 increase* Repeat around (36 stitches)
Round 7: *5 single crochet, 1 increase* Repeat around (42 stitches)
Rounds 8 -14: 1 single crochet around (42 stitches)
Round 15: *5 single crochet, 1 decrease* Repeat around (36 stitches)
Round 16: *4 single crochet, 1 decrease* Repeat around (30 stitches)
Round 17: *3 single crochet, 1 decrease* Repeat around (24 stitches)
Round 18: *2 single crochet, 1 decrease* Repeat around (18 stitches)
Pale brown
Round 19: Back loops only *2 single crochet, 1 increase* Repeat around (24 stitches)
Round 20: *3 single crochet, 1 increase* Repeat around (30 stitches)
Round 21: *4 single crochet, 1 increase* Repeat around (36 stitches)
Round 22: *5 single crochet, 1 increase* Repeat around (42 stitches)
Safety eyes
Dark brown
Rounds 23-30: 1 single crochet around (42 stitches)
Round 31: *5 single crochet, 1 decrease* Repeat around (36 stitches)
Round 32: 1 single crochet around (36 stitches)
Round 33: *4 single crochet, 1 decrease* Repeat around (30 stitches)
Round 34: 1 single crochet around (30 stitches)
Round 35: *3 single crochet, 1 decrease* Repeat around (24 stitches)
Round 36: 1 single crochet around (24 stitches)
Round 37: Back loops only *2 single crochet, 1 decrease* Repeat around (18 stitches)
Stuff
Round 38: *1 snigle crochet, 1 decrease* Repet around (12 stitches)
Round 39: 6 decreases
Fasten off and leave along end for sewing

Pass the yarn trough the cactus to the chango of the pale brown to dark brown. Sew the changing color round with the 4th round below to make an edge

Decoration

Big ball
Round 1: 6 single crochet magic ring (6 stitches)
Round 2: 1 increase around (12 stitches)
Round 3: *1 single crochet, 1 increase* Repeat around (18 stitches)
Round 4: *2 single crochet, 1 increase* Repeat around (24 stitches)
Rounds 5-8: 1 single crochet around (24 stitches)
Round 9: *2 single crochet, 1 decrease* Repeat around (18 stitches)
Stuff and fasten off

Small ball
Round 1: 6 single crochet magic ring (6 stitches)
Round 2: 1 increase around (12 stitches)
Round 3: *1 single crochet, 1 increase* Repeat around (18 stitches)
Rounds 4-6: 1 single crochet around (18 stitches)
Round 7: *1 single crochet, 1 decrease* Repeat around (12 stitches)
Stuff and fasten off

Flower
Yellow
Round 1: 5 single crochet magic ring. Slip stitch
Other colour
On each single crochet* chain 3, 3 double crochet, 1 slip stitch in the next single crochet*