Wendy you have to know the history here. Rhubarb used to put out pretty offensive t-shirts. Much like
www.tshirthell.com but not as commercialized. Some people ordered them and they never arrived. So it's kind of half running joke, half mental masturbation to even design them, much less even expect them to ever materialize.
But if you can find a screen printer still in business and take those designs someplace, please do. You have my word that I will buy one of each. Just don't look to me for capital.