Yeah, I'd like to get some made too, but it seems everyone wants to to a large quantity. Tried a few Internet places a while back. There's two local embroidery places, seemed like they wanted between $60 and $150 to digitze my logo and then would put it on hats, jackets, etc.
There's a school mom that has an expensive embroidery machine, she offered to try. I need to follow up on that. I always thought a cool little business would be to do patches like you're asking for.