jimmy cracks me up

gimcrack \JIM-krak\, noun:
1. A showy but useless or worthless object; a gewgaw.
2. Tastelessly showy; cheap; gaudy.

[From Tuesday's dictionary.com word of the day.]

Let's use it in a sentence, shall we?:
As a joke, his fellow plumbers dropped some Mardi Gras beads down Jim's pants: adorning Jim's crack with gimcrack.

(That was a lot of work to make one tasteless pun.)