You can absolutely pour "normal" cake batter into a bundt pan. Why would that be dumb?
But here is a great recipe that my mother in law has been making for years--since veganized and de-glutenized for our family. She uses flax eggs and Bob's Red Mill all-purpose GF flour.http://southernfood.about.com/od/pears/r/r70204c.htm
It calls for Asian pears, but apples or still-crispy pears are good too if you don't have those.
It looks really pretty in the bundt pan. Doesn't really need an icing or glaze, but a quick sift of powdered sugar looks nice and can hide any flaws or bumps. Just be sure to grease the pan well before you start, and use rice flour or more GF AP flour to flour the pan too. That way the cake won't stick and will turn out nicely.