The plugin must randomly pick a monthly daily or yearly winner from a set user group. It must also have the option to run several raffles/contests simultaneously including ones that allows members/non members to buy a ticket set at a certain price and then draw a monthly prize from those who purchased tickets.
So essentially there would be 2 modes to create your raffle/contest through this plugin: Member mode and Paid mode and these raffles must be able to run simultaneously.
The plugin should also allow A picture to be shown of the prize for the month and possibly even a calendar/schedule of upcoming prizes