While freedom-stamping recently, I came across this stamp on the front of a dollar bill:
I went to the website and it turns out this is a shameless add for some infomercial-quality product. This is a shameless use of currency for advertising for profit. I've blacked out the beginning of the website name so as not to glorify their website/product.
Keep in mind that BillStamp.com does not ever turn a profit and is not in the business of selling products for profit, or in any "business" at all, for that matter. Our website is about fixing unconstitutional Federal Reserve Notes in a way that promotes religious unity and diversity, as our founding fathers certainly wanted. Our stamp only references our website for detailed explanation of our message.