Yea, I have made spice milk (whole mixed with oil) with a "blueberry flavored" spice. It was (and is) the most distasteful concoction I have ever been unfortunate enough to try.
Doesn't really make sense - JWH is acetone soluble, you could give it a 100% acetone wash, let it evaporate... ta-dah! But this has already been asked and answered in the past - the major issue here is we don't know which synthetic is in what blend - or if it is even JWH at all.