Knitted thorns

[bercilakslady]

I'm trying to work out a pattern to make a Rose Goblin. It's basically the child of a cat and a rose bush. I can make a cat, but this one needs thorns, that are directional, like a hedgehog's spines. (The Rose Goblin is from Seanan McGuire's _Rosemary and Rue_, which is a wonderful book.)

Can anyone help me figure out how to make these thorns? They need to be several different sizes.