Magnetic garage door latch?

I need one for my RV also. I have them on all doors but one. I did a search on Amazon, and came up with these two:

Magnetic catch

Looks interesting. Do you have any photos on your rv? Kind of tough to see how they work from the amazon pics.

You could probably put together something similar (at least functionally similar) using these adhesive-backed rare-earth magnets, or these cupped magnet sets (the smallest ones, I guess), or these rather similar sets.

With some of the larger and stronger rare-earth magnets, you might need to avoid driving too close to guard rails or streetlight poles or smart cars.

Here's one:

I have one of these in my S&B house; very strong magnet.