If we would like to induct more donators, I suggest that we have a drop party for those who have donated. To be eligible to participate in the drop party you will need to have donated at at least 5$. The question is: What should you drop at it? Simple, I would suggest basic supplies such as: Logs,Food, Ores*, etc. For a place I would suggest a type of place where no one that hasn't donated can go for instance: Have it in the sky, but as a warp( and It is only accessible by donators) This idea can provide a steady cash-flow for the server thus keeping it running and giving the players a better experience.
*Ores: depending on how much they pay will decide what type of ore they get free.