Did you know that new #Emoji can be proposed by anyone, simply by following some guidelines laid out by the #Unicode consortium? There's a time window each year where they accept proposals, and a select few might make it into future sets.
This year I turned one in: "Circuit Board", which I was surprised to find 1. didn't exist and 2. had not been proposed before (though CPU and Microchip have both been submitted and declined in the last 5 years)
You can read my proposal here:
https://storage.googleapis.com/greg-kennedy.com/Proposal%20for%20Emoji%20%E2%80%9CCircuit%20Board%E2%80%9D.pdf
and you can see the Unicode emoji proposal guidelines here:
https://www.unicode.org/emoji/proposals.html
Anyway, the odds aren't great of getting accepted, but if it IS then you can say "hey! I know the guy who submitted that one!"
Attached are the sample images I drew up for the proposal - which, incidentally, are now Public Domain as well. Enjoy!