And, no, that's not "re-horning" gi-raffes. Gi-raffes have ossicones, not horns. 
Anyhow...
If you have a gi-raffe with a denuded bonce (left), dressmakers' pins (center) can be used to restore your lopsided or missing ossicones (right). I use the ones with the yellow plastic heads for the best match.
Simply drill holes in the appropriate spots with a pinvise or motor tool at slow speed, cut the pins to length and cement in place with instant glue.
If you have a section of bare pin showing...
...touch up with a fine paintbrush.
Have fun!
Mitch
