Liz,
 
Comb honey can be produced using special comb honey frames and wooden boxes
with inserted very thin bees wax.  There are several styles of boxes that can
be assembled and placed into these frames with special holders that are part
of the frames.
 
There  are also round sections that also use a different kind of plastic
frame situation and these are called Ross Rounds.
 
There is a realitively new system call Hogg Half comb cassettes.  These can
be seen in several of the bee catalogues.
 
There is also extruded plastic foundation some wax covered and some not that
can be purchased.
 
If your further interested you can contact my Wife Emily Johnson through her
business the Honey Bunch at 62295 Pine Rd. North Liberty, IN. 46554 (219)
232-7387.  She can probably obtain these items for you or at least send info
on them so that you can understand what each is
 
Bill Nelson/Emily Johnson