I have not seen one. I don’t collect graded cards but do add any variations listed by SCD, Becket or the Registry to my sets, so try to keep up on any new additions by PSA to it’s master set checklists.
In the meantime I collect any interesting recurring print differences, like this one, intended or not by the manufacturer . But since Lemke’s retirement and passing I know of no official, consistent or effective way to get new variations considered or recognized officially by the hobby
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