I used Lily Sugar’n Cream yarn and a 5mm hook, though you could probably get away with whatever yarn you want as long as it’s weighted #4 worsted (basically, not the uber thick yarns)

I only made this one size, which makes a Spheal of diameter around 8”.

I ended up using 2 skeins of Blue, about 1 skein of the underbelly color, and just a bit of white.