Browsing thro my printed version of UNicode 4.0 I discovered the follwing annotations to U+00A4 (The currency sign):
Filzlaus, Ricardi-Sonne (german names) May I request those names to be dropped? Both are jargon at best and not widespread. Filzlaus is meaning crab louse, and it is well known (to german speakers) where those animals live and how they spread. Ricardi-Sonne is probably misspelled (should be Ricardo-Sonne, alluding to the famous economist David Ricardo). The name is not in wide use anyway. Even "Sputnik" is better known... --J"org Knappen

