Cool Ed Hardy tattoo theme. Do an image search on Ed Hardy.
Please, no death, no skulls, no blood, no swords.
Have fun. Be positive, emphasizing good luck, not bad luck.
Dice, cards, roses, Asian elements like fish, Hearts(!), cherries are all OK. Again see Ed Hardy image search.
If you can add neon glow on black background, cool. We imagine black, purple and red, but we are open-minded and allow the designer to do their thing.