Here in UK, certain charities like Age UK and a local hospice run a lottery whereby a modest prize of a few grand can be won...nothing that would allow you to retire but enough to be worth competing (I believe Age UK offers £25,000 and the hospice £10,000). Basically I think that it would be a fun way to donate and the potential of winning a prize would encourage more participants, therefore more donations for the cause and all-important publicity.
I think that the option to play online would be vital, as members are scattered and being open to worldwide participants means more potential donors. Here in UK, we have The National Lottery that can be played online or via brought tickets and a more modestly-prized Health Lottery that donates to local health causes. Perhaps at some point if this were to be successful, Longecity could look towards joining forces with certain retail establishments to sell tickets in real life for those averse to online gambling.
Probably a bit far-fetched but in case i can be done, I'm sharing it.














