Our local Battletech group organized to order some custom dice from Chessex. I say "we" organized, but Jeremy did all the work (Thanks Jeremy!). That's our group emblem to the right. [original artist/source unknown]
These dice have a single custom side, with the six-pips replaced by our mascot hungry shark. They really turned out nice.
Shiny new dice in hand, I proceeded to try them, and in their debut game ...
... I had absolutely terrible luck.
("Jeremy, I'd like to have a word with you about these dice.")
Maybe they just need more practice. :-)