Fabric Mate fabric markers work very well also (I've used them for years). You can get them at JoAnn's in with the puffy paint. You can buy them in a pack (light or dark colors) or loose. JoAnn's also will sometimes have fabric markers in with the kids summer craft stuff.
I've never heat-set in the dryer - I always use a dry iron and take my time and everything's worked out fine.
Another helpful hint: when I have kids sign pillowcases (I often do them for going away rememberances) I have an embroidery hoop that I use to keep the fabric taut
And a couple questions:
Has anyone ever had any problem with the markers bleeding through from the front to the back of the pillowcase? I'm wondering if I should include a piece of cardboard or something.
How many signatures do they do? I'm debating making a plain white pillowcase or one that's got some Disney fabric on one side and reverses to plain white.
Thanks!
Deb