I bought a set of sun shades that were the snap on kind. I decided to modify them with magnets. Not as easy it would seem.
I bought these magnets off Ebay
N45 Neodymium Magnets Dia 1x1/8" NdFeB Rare Earth Disk Magnets 20-Counts
If I had to do it again I would get stronger magnets, I had to double them up to get better holding power. My first attempt was to glue them on the sun shade but they would not hold. I then took some heavy material and made a round patch and sewed them on, seems to hold don't know for how long.
I took the same magnet and used double side adhesive tape to hold them in place, again a stronger magnet would be better.
Overall my modification worked, again if I would have stronger magnets it would have been better.
2002 Monaco Windsor 38 PKD
2005 Jeep Grand Cherokee w/5.7 Hemi