It's probably telling that I can't get the character to display properly in any interface... but whether of the practicality of the suggestion, or the level of my char-fu, I'm not sure.
Just copy+paste ;)
On OS X, you can enable the Character Palette which is extremely handly for inputting unicode.
Settings->International->Input menu->Character Palette[Check]
This lets you prefix digraphs with rwin, and have them print unicode characters. This is (to some extent) configurable, although I am not sure on the location of the mapping.
EDIT: Some examples (default settings): ä ç ß ¢ £ ½ ⅓ ¼ ⅙ ⅛ » « ¥ õ ° — – º