As an added note - you can trademark a name. In Australia the Illusion
cocktail as become a registered trademark of Midori (Suntory). In effect, this
makes it harder for others to profit from using the name but, even then, does
not stop every bar in the country listing it on their cocktails lists - minus
the TM.
I believe the cocktail name 'Hand Greade' is also a registered trademark.
There's my 2c worth.
Jason