I think the designs on the bonanza link just posted here are illegal.
This vendor does not have permission or a license from the copywrite holder to use them.
If you purchase them you are breaking copyright laws also.
My mistake, i just posted what I found. I'll know better next time. Thanks for pointing this out
just google iron man machine embroidery, quite a few come up
Iron Man designs would be copyrighted so the only legal place that would have them is a vendors that can afford to pay for a license from the copyright holder to use the images of Iron man for the purpose of digitzing them for embroidery and also to sell the digitzed designs to the public.
I don't think you will find any legal designs available anywhere.