"This plugin comes with all the dice graphics you need to make your dice system, including D3, D6, D8, D10, D12, and D20 dice."
Alright, I hate to be that guy that points out a single-character typo, but I assume you meant to say "D4" instead of "D3"?
Also, that casino example was actually really funny... had to roll a 7 or higher with a d6 in order to win? Those darn casinos just keep getting schemier! lol