An Amplifier..?

They don’t look at all happy with themselves either & for good reason, too, because whatever it is they’re supposed to be they’re really not plucking our strings… Maybe they’re just meant to be conjoint twins, but then why go to the full, daft effort of making & printing that t-shirt..? It makes no sense to us whatsoever, but if any of you readers have any ideas please give us a shout.