For a Ranma 1/2 fanfic I'm working on, I have a scene with Hiroshi,
Daisuke, and Sayuri sent out to hold buckets in the hall along with
Ranma, Ryouga, and Akane.  However, I don't know the surnames of
Hiroshi, Daisuke, Sayuri, and Yuka, and it's getting boring having the
teacher say "YOU!  Out in the hall!"

So have surnames for these four ever been given in either the manga or
anime?  Or am I free to make some up?

-- 
Steven Scougall
http://www.geocities.com/Tokyo/Flats/7196