Mr. Donut was a really prolific chain, and had a good number of locations down here. This page features all of their locations that I've photographed- both the more eye-catching spiky ones, and the more bland boxy ones (sometimes converted spikies)
I highly recommend this place's donuts. Also to note, this is one of the converted locations, with a spiky-roofline hiding behind the roof facade.
Titusville, FL (Interior)