You can crochet this toy with your favorite yarn - cotton, acrylic, plush yarn and your favorite crochet hook. The height and width of your toy will depend on the thickness of the yarn and the hook size.
But from yarn with cotton after active games-the look will be much better than from 100% acrylic. If you immediately use a good yarn -100% cotton or mixed 50% cotton -50% acrylic, then the look of your toy will delight you for a long time.

Toys should be crocheted very tightly. Then when filling with filler:

1. they do not stretch much.
2. the filler is not visible through the holes
3. they have a beautiful look like in the pictures in the pattern.

I recommend Sport, 4Ply yarn or Lace weight yarns.
The sample is crocheted with 100% cotton yarn (1.8oz) 50g Lace - red 70 yds , orange 120 yds, yellow 210 yds, green 120 yds , light blue 70 yds , blue 70 yds, purple colors 70 yds, , gray – 120 yds. Crochet Lace from a thread of 2 addition
Size: the height and width of 1 base cube is -2 inch/5 cm.
Hook-№ 2 mm- 2.5 mm . I used № 2 mm hook . I know that many people find it very difficult to crochet with such a small size. This is why I recommend a 2.5-3 mm hook.
Scissors
Needle
Filler -holofayber, synthetic fluff