Nope. Strawberries, blueberries, oranges, and apples. None of them can be enchanted, and the only thing they transform is fluid flavor.
It could potentially be because I am using Loliphile's build, but I feel like either he or someone else would have caught it before now. I finally resorted to the debug menu.
Just debugged myself back a few days to do what Bipto said, to see if maybe something jostled loose since I got to this point. I have now bought his stock out twice over and I am still at 12 reputation.