I'm not familiar with any Fish Fry fund raisers, but during Lent, all you see are ads for the Friday Fish Fry, and the inevitable 3 times in 40 days "Who has the best Fish Fry in WNY" post.
Fireman Carnivals are the best! I grew up with the Marilla Carnival in my back yard, literally. My driveway was next to the entrance of the Marilla Fireman's Park.