In Brazil, for instance, where there has been an increase in demand for more premium beer, A-B InBev chose in 2012 to trial the use of thermochromic ink on its Antarctica Sub-Zero brand. (thedrinksreport.com)
In honor of the upcoming eclipse, the new USPS Forever stamp uses thermochromic ink to offer two stamps in one. (treehugger.com)
Launched on the summer solstice, of course, the pane of 16 Total Solar Eclipse Forever stamps employs a bit of sorcery by means of thermochromic ink — a first for a U.S. stamp. (treehugger.com)