Magnetic Drip tray bracket for cheap bar supply drip tray

I have been using this bargain drip tray on my keezer for a long time. It's a nice piece of stainless steel for $16 bucks and it is fairly easy to find (links below). Originally the thing to do was use these adjustable self brackets with magnets glued to the back to hold it to the freezer. It worked but I now have a 3D printer. I thought is could be improved so after a couple attempts I have come up with this design. You can get away with two but I used four to hold a couple pints with out any concern.

The magnets are what I had on hand. They are strong enough that you should take care with them. I coated the recessed area by brushing in super glue and pressing them in until they are flush.

drip tray links:
https://www.barproducts.com/barconic-stainless-steel-drip-tray
https://barsupplies.com/stainless-steel-drip-tray-p-349.html

magnets:
https://www.homedepot.com/p/MASTER-MAGNETICS-0-7-in-Neodymium-Rare-Earth-Magnet-Discs-3-per-Pack-07047HD/202526369

https://www.magnetsource.com/Consumer%20Pages/WhereToBuy.html

Edit: Added B E and R brackets.

Edit: Added a bracket for the larger 5in x 7/8in drip tray thats out there.