5. MAGIC MARKERS
The classic glass bottle-bodied Magic Marker was first marketed in 1952, and until the early 1990s, the ink formula included a mixture of Toluene and Xylene, two solvents which not only had a distinctive and not unpleasant odor, but which also contained intoxicating properties when inhaled. Today’s permanent markers get their color from less fragrant alcohol-based inks.
via Mental Floss
August 12, 2014
