Donut amount?

I know everyone says donuts are trendy and who wants them at their wedding and it's a bad only dessert option, but hey, I've wanted donuts from this one local shop for my wedding since I was 10 years old. So, yeah. :-) Anyway, we're going to have donuts and ice cream for our wedding dessert. We don't have money to do a big spread of options, even though that would be what I would love to do. (Cupcakes are EXPENSIVE!) I'm trying to decide how many to get, because I know there will probably be a lot people (maybe more than average) who won't eat any. Would it be fair to just account 1 per person and assume it will even out or should I do 1.5/2 per person? I can see having a ton left over if I do that, but I don't know.