Pirates of the Caribbean dice game

    I didn't know these games were so expensive on amazon! I
    scored one at a yard sale for $5. It's a betting game that
    I want to simplify (totally change) and want some ideas for
    doing that. There are four mugs. Each mug has five dice. On
    each die is printed a skull/crossbones, then 2,3,4,5,6. I
    can have a game set up for four... or open it up to more
    and give each child one die. Suggestions on tweaking this
    game? Thanks so much in advance.