This weekend and into yesterday I was working on magnetizing my Land Raider Redeemer/Crusader. It was actually pretty easy to do and I am quite pleased with the results.
Magnetized Baal Predators. As you can see I also magnetized the armour plate that goes on the outside of the weapons. A LR kit only comes with one set, so to have it for both weapons I had to do this. Another key thing to note is I only magnetized the bottom of each mounting bracket. This was a deliberate choice. They are plenty stable with the one point, it is easier to attach and remove weapons and you can't see the top mounting point when it is on the vehicle on the table, so the illusion of it being connected top and bottom is still there.
Next up are my pintle mounted weapons.
Last of all, not magnet related but still cool is the whip antenna and a few other minor conversions.
Other changes include a spare FW hatch of some sort that I had, probably back from my Imperial Guard days, and I mounted my searchlight to that. I also had a spare BA Icon from a Baal Predator I mounted to the Assault Cannon. Last of all is the fact, as seen in multiple pictures, I had Forge World LR doors. These are actually really nice and fit really well.
Hope this inspires you to try and magnetize your vehicles as well. To me this is where it is worth the effort. I was able to get a pack of 100 magnets off amazon.com for $10 US. I used probably 12 from that pack (not including the little magnets) and have tons left over AND I didn't have to buy a second $80 vehicle. Well worth it.