Yes indeed, a long and boring explanation, during which the humor gets lost. Heraldry is a method of communication. And in those examples where canting was used, it can be very much dependent on language. Essentially canting functions like a rebus, once you have a correct identification in the proper language. A simple example is Krebs - a red lobster [German: Krebs] on a gold field. Whether this has anything to do with the VMs Cancer medallion is a separate and unresolved question.
As far as the tub patterns, they certainly appear to be mostly derived from heraldry, though a certain amount of good old VMs ambiguity starts to intervene about halfway around the outer Pisces ring. The problem with making external connections with these patterns is the lack of coloration, or the problem of tincture designation. Armorial heraldry is introduced by the Pisces tub patterns, but then deflected. Even the colored tub patterns of VMs White Aries are far from unambiguous. It is the combined influence of additional elements that strengthen the original, proposed interpretation.
As far as the tub patterns, they certainly appear to be mostly derived from heraldry, though a certain amount of good old VMs ambiguity starts to intervene about halfway around the outer Pisces ring. The problem with making external connections with these patterns is the lack of coloration, or the problem of tincture designation. Armorial heraldry is introduced by the Pisces tub patterns, but then deflected. Even the colored tub patterns of VMs White Aries are far from unambiguous. It is the combined influence of additional elements that strengthen the original, proposed interpretation.