I was at the Folger -- premier library of all things Shakespeare -- to see a lovely, Caribbean-inspired production of Much Ado About Nothing (Hero, seriously, kick that self-absorbed, jealous, jumps-to-conclusions, slut-shaming guy to the curb!) where I saw this in the gift shop.*:
It represents one of the lesser-known sonnets: "Rubber Duckie, thou art the One/Thou makest bathtyme so much fun."
*I confess that I did not take this particular picture. The shop was a bit crowded and I felt self-concious.