Anybody have any success magnetizing their own drivers?
Yes, but if doing anything over 1/4" or M6 nuts, the need to remagnatize does occur.
For me , if I need magnet drivers, I break out the (magnetic shaft) Snap-On ratchteing screwdriver and the 1/4" drive hex drivers in either sae or metric. In a pinch, I use std sockets and the 1/4" sq to 1/4" hex bits and let the SO screwdriver or any magenetic bit driver provide the magnatism.
Again, for smaller fasteners, its fine. M8 and up fasteners can get heavy and thus be cumbersome.
IIRC, Wiha, Felo or PB Swiss offer magneitic options. If not , do the stickey magnet cutouts that fit into the hex recess of the driver.