Do Your Research!

I think this line is valid not only for Sherlock.

(Soapbox mode on)
In the age of data overflow it’s important to check your facts, before you hit the share button. The net is full of meaningless (or plain false) blabber – you might not be able to reduce it, but it would be nice at least not to spread it.
(Soapbox mode off)

Make your own or choose adjustable ready-made products (with free choice of design colour) at Spreadshirt.net(EU) or Spreadshirt.com(USA)

Ready-made products at Redbubble (some examples below)

Choose or make your own product at Spreadshirt playing with colors

Update: Now also on Redbubble with 3 versions!