My original plan was to print paper wallets and put scratch off stickers on all the private keys. Mix them up and add funds to some to make a bitcoin scratch off card. But I assumed this would just be called a scam so I picked current national lottery cards as an option with the lowest prizes I could find so they would be easy for me to pay out in BTC. If you can think of a way to do a bitcoin scratch card let me know because I want to make that happen as I love scratch cards and a bitcoin scratch card would be cool
Dont know your country rules but in most running your own lottery bonds on the illegal issue. If it is not put the prize money in an escrow and get the scratch cards made up. Only problem is that with little trust you can send the winners to your alts. Neat and fun idea but with the amount of scams this place sees, little chance that people will buy in. Just my 2 satoshis on it.