I don't have any pictures of the pvc pipe shapers. You take a piece of pvc pipe about 3 ft long, rip it in half in a table saw with a fence and then cut the 3 ft length into pieces about 6" long.
Go to Auto Zone and get some self-adhesive sandpaper that they use in auto body shops and put the sand paper into the pvc pipe halves and you have a tip shaper!
It looks like the one shown on the pocket lathe link in the post above somewhere.
There's also pics of the shaper and the home made lathe made from an electric drill and a crutch tip on the ccb... if you do a search.