Print On Demand Creative

I'm looking for someone who has an interest in Print on Demand. Looking for someone who has experience in creating profitable print on demand products and listing them on etsy, teespring, redbubble, etc. * Please include in your application whether or not you have done product research or niche research for print on demand. Also include whether or not you have experience in researching which print on demand products will be profitable and then have successfully come up with your own ideas and created your own print on demand products that have created profit. I'm looking for someone hopefully who has experience in print on demand product research as well as design although you can still apply if you are only experienced in one of these. Just include your experience on your application. Thanks!