Thank you for posting those again! My memory of them as looking like a synthetic snowflake is definitely accurate. Absolutely gorgeous! I've PM'ed Stan, and he will make some more of them, after which I'll order one for my '85 Bertone, together with a Bertone single "b" keychain (28mm) to give to my '82 Fiat.
Right now both of my key pairs are on simple, sturdy keyrings, without any fobs. The only easy way to tell which is which is that I have a red plastic key head edging on the '85 Bertone's door key.