In ancient egypt there was sign language called Hieroglyphs.
Wikipedia says:
It was a formal writing system used by the ancient Egyptians that contained a combination of logographic and alphabetic elements. Egyptians used cursive hieroglyphs for religious literature on papyrus and wood. Less formal variations of the script, called hieratic and demotic, are technically not hieroglyphs.
Here are some alphabets from the language: http://www.greatscott.com/hiero/hiero_alpha.html
So how you can use this language in today’s world?
Simple generate your name in it and have fun !
How I encountered with this language ?
There was a question related to this in Kryptos I won.
Here is Kunal in the language