Type Unicode nonsense. Impress your friends.
Source: https://github.com/dfkt/mathfont
References: Mathematical Alphanumeric Symbols (U+1D400โ1D7FF) · Letterlike Symbols · Halfwidth and Fullwidth Forms (U+FF00โFFEF) · Regional Indicator Symbols (U+1F1E6โ1F1FF) · Cherokee (U+13A0โ13F4) · Runic (U+16A0-16FF)