I see many request for different kind of polls, which is good! The whole point of them is to get an insight into the community and to raise engagement. Since there are a lot of different suggestions, I thought I might let everyone have a crack at creating their own and post them here.
If I think one suggestion is above the rest in terms of originality, or gets much more votes than the rest, I may actually put it as the main poll on the Wiki for a while (maybe a weekly turnover) and also add it to the RR3 Wiki:List of Wikia Polls page.
What you will need to do is (in source mode, symbolised by the square brackets in the lower LHS of the comment box), write something similar to this:
This layout is paramount to the poll working, everything needs to be on different lines, which will give this:
Of course, if the nature of the poll is rude or offensive, it will get removed, so keep it clean and if possible, on the general topic of the Wiki or RR3.
EDIT: Also, bear in mind that changing part of the poll resets the results.