I'll give a clue - it's something that has required significant monetary investment on my part (I'm talking 5 figures US$) before I can offer it to users. I'll reset the 24 hr limit for the users who posted before. You guys can guess again.
My second guess: you are creating your own mining farm and you will share part of your earnings with your users, tickets will be either for minutes of mining with your total hash rate, or you will give daily mining with part of your hash rate(for example 1 ticket - 1ghs)