I think Macdonald shud do a card game. It will make kids over crazy and keep buying for rares. 5 EVM upsized comes with a free Starter Deck. Every EVM comes with one Booster Pack.
*Summon Cheese Burger!!*
I think Singapore shud do a island wide fast food restaurant card game.. even better. Then can have Mac Deck battling KFC Deck in a Singapore tournament. Make it international and you can even trade with players across continents.
I would release them near the end of the contest date. E.g. Sentosa cove only have 1 cos there is 1 x $50,000. I will give it specifically to some lucky fella and make sure he open the sticker and claim his 50k. What if he throw away the Sentosa cove sticker without opening it? LOLX