I have painted several ice rod tips ,it is best to do with the guides off but with a little care one do it with guides on.
Testors/Pactra RC Car spray paint works very well,first you must LIGHTLY sand the area(400-600 grit),then apply a white backing color ,then spray tip any color you choose.
If it were me I would use Competition Orange, first remember use very light coats of each and let dry for 24 hours before applying another coat, when desired color is applied use a clear to cover the area painted.
The paint I mentioned is a lacquer paint and is very durable if applied and dried right !
JMHO Jeff