A stand-up comic routine that features a horribly-designed slide show.

I once gave a job talk using the same basic principle -- though not as funny. After about 8 or 10 awful slides that used the kind of dot-com hype that was at that time common online, I put up another one that read, "What have I done wrong so far?" and the students (who had been staring in shock) suddenly perked up and started contributing.

(I got the job.)