attached is a picture of a technique that I use that seems very secure.
I use heavy music wire with an 80° bend on each hand which slips into small holes in the plate. These holes can be very small and less than an eighth of an inch deep works fine. Just make sure you bend the ends of the wire so that the weight is resting on the point at the end of the wire. When I plan ahead, I put these holes in the greenware..Sometimes I forget. Then I to use a small diamond drill To make them.
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