It was a challenge to find, even with google, but I did it. This site explains how to make the ‘I heart Canada’ glyph… except it doesn’t. All it does is tell you to copy/pasta his glyph – █ ♥ █
If you want some actual knowledge & the ability to use this glyph without looking up his site all the time, you can learn its html codes.
These give you a rectangle, a heart & the first rectangle again.