LiteCoinGuy, Za1n, Mickeyb, Rustynomad, runpaint, etc: Thanks for your support.

goosoodude, the character I successfully added to Unicode before is the "group mark symbol", used by IBM computers in the 1960s. http://www.unicode.org/L2/L2015/15083-group-mark.pdf

jt byte: My proposal covers BTC not ฿.

wearehatetherules: I haven't submitted the proposal yet. The Unicode Committee's next meeting is in November.

Ken