This little mount uses cutouts in the firewood basket on top of the fridge box to add an attachment point for the mast. The back plate is secured with 4 M3 bolts.
The bottom of the mast rests on a 3inch pipe flange from a home improvement store.
I've printed it with ASA filament; the side cutouts are probably just me going too wild with the model.
The author marked this model as their own original creation.