I have 8 of these -->  http://www.jbprince.com/chocolate-and-sugarwork/squares-magnetic-28-cavities.asp
and 8 of these -->  http://www.jbprince.com/chocolate-and-sugarwork/rounds-magnetic-28-cavities.asp

They're just too small for me.  $20 each plus shipping or take all 16 for $320 and I'll pay shipping.

updated by @greg-gould: 06/29/23 16:49:02