If it were possible, how would one improve upon a classic supervillain like The Joker? I'll give you a hint: Don't give him a flame-throwing banjo!
That's exactly what I.W. Publishing did in Dollman #15 (1964), with a Joker-wannabe named "The Minstrel". Mix in a hideously drab color scheme, a layout that could put even Robin Williams to sleep, Dollman's bare legs and little red booties, and you've got yourself a prime candidate for this week's Worst Cover Ever...despite the Seal of Quality in the upper-right corner trying to convince us otherwise.