Backpack Strap Magnetic Mount

Inspired by My Little Demon's magnetic plush dragon for Gen Con 2024, this is a mount for such things so that they can be displayed riding on one's shoulder while wearing a backpack (as one often does at conventions and such)

Because it was fun, and because I'm just that kind of crazy, I have prepared multiple versions:

All versions require a "Magnet Plate". The holes in it are sized for 4mm x 2mm disk magnets (because they happen to be what I have around, and they're cheap on amazon). Glue in up to 25, making sure to align the poles. In all versions, the magnet plate sits in the clip from the underside, and should be approximately flush with the clip's top.

[EDIT 9 Aug 2024] I have added a version of the magnet plate that uses 5 10x2mm magnets instead of 4x2. These are much stronger, and should provide a more reliable attachment.

The Magnet Plate is a separate part so as to allow you to flip it over, as I don't know what polarity the outward facing pole of the magnet i