The jtpr entity posted thusly:

I thought the way it was done was to put the pins in the carcass before
assembly, then do the glue up, and put it together around the top with
the receiving holes. But your way sounds like more fun.

Heh!

Figures.. a REAL easy way to do it. The idea of the pins came to me
while I was reading an article on 'secret compartments' in furniture
or boxes. One of the methods consisted of magnets attached to plungers
that would unlock the compartment.