Those kidney beans made the rounds - '63 Impala and Tempest annuals, then the Parts Pack, then the Cobra through white-box.
And now that we are discussing them, I'm wondering how a set would look on the olde Firestone Darlingtons... stuffed in the corners of a '57 T-Bird... hmmm.
I was casting them for a while. Went through two mold sets, before the rubber started tearing.
But dang if I didn't lose a ton of them .... somewhere... the old Ragtop Dungeon and R&D Center (now boxed up in my garage.)