My t-shirt collection is fabled and I have tons of pro-marriage equality tees. I don't have one like this. I'm okay with that.
Some marriage equality supporters have pushed the envelope a bit with their t-shirts and other items, but I'm guessing this one is done more for "comedic" value than any actual pro-marriage ideals.
You can buy one for $22 if you like a side of misogyny with your civil rights.