I get asked a lot if you can stamp on fabric. And unfortunately it's not a simple yes or no answer it depends on a lot of things; the image, how much detail you need, the ink used, the fabric you are stamping on, and the surface. This is an example of a large image, The Large Raven, and "Nevermore." stamped with Jet Black stAzon, on muslin fabric. As you can see not all of the detail was captured onto the fabric, but the overall outcome is pretty spiffy.
This is was a quick little project my sister and I worked on before our local parade - you wouldn't believe how much candy fit into that pocket! This may not answer all of your fabric-stamping questions, but it gives you an idea of one project idea that combines sewing with stamping!