It isn't technically copyrighted and doesn't seem to be subject to trademark, and is kind of a cultural symbol, so for all I know there's a hidden symbol assignment for it somewhere... but the Sigil of the Gateway strikes me as an awesome thing to be able to make with unicode modifiers. I would love to put it at the end of some emails and rely on it displaying.
How would one go about doing that? Does anyone know?
I mean, we totally have pentagrams, ⛧⛧⛧, along with just about every other holy symbol and cultural symbol with redundancies.