There are some things that beg you to make them. You start looking at pictures of them everywhere (pinterest, facebook, blogs, etc.). That´s what happended to me with this amigurumi cactus. After a little research I tried this patterns and liked them very much. Each cactus is made with a different acrylic yarn, all with a 4mm hook.
Así nacieron los cactus de Bea...
And that´s how Bea´s cactus where born...
y el de Natalia...
and Natalia´s
y al final uno para mi (...con lo mala que soy con las plantas quizás hasta este se me muere!)
and finally one for myself (hopefully this "plant" won´t die)
En fin que recomiendo estos patrones para hacerlos con cualquier tipo de hilo...me parece que quedan muy monos y hacen un bonito regalo!
In short, I recomend this pattern, you can make them with any yarn and hook you want. They are pretty cute and I think they make great gifts!