I'm making a Spider Jerusalem amigurumi for my boyfriend's birthday (http://www.starstore.com/acatalog/dc_spider_jerusalem-01.jpg for a picture). I'm trying to do the tattoos too. I tried cutting the shapes out of felt but that's not working so well.
I'm wondering if anyone has any experience in drawing on yarn. I don't want the color to come out if it ever needs to be washed. Will a permanent marker be enough? Or should I actually get a fabric marker that requires heat setting. I'm using Lion Brand Vanna's Choice yarn, so I believe it's synthetic.
Any other advice on adding the tattoo design any other way would also be appreciated (I'm not good enough at cross-stitching to attempt it that way).