The Sincero-Mark and You: Emoticon Meets Master

You may have heard that a company named SarcMark has trademarked a new punctuation mark intended to denote sarcasm. This sarcasm symbol looks like a backwards ampersand; I'm reluctant to reproduce it because they're apparently actually trying to sell it.
Although the free market dictates that one can charge what the market can bear, I find it both unconscionable and crass that this punctuation mark can only be purchased. There are an infinite number of all the other punctuation marks out...