dont think so
http://www.mangago.me/read-manga/touhou_sweet_potato_doujinshi/
You ask and I answer ٩(๑❛ᴗ❛๑)۶
hahahaha
wow i didn't think any1 would find one xD
(but it wasnt yaoi >_<)
There's also this, but I don't think it actually has anything to do with potatoes.
http://www.mangago.me/read-manga/kms_potato_times/
it doesnt....
ive looked at it b4
uhmmmmmm
are there any mangas with.....
potatoes....
hahahahahaha xD
(im just curious)
(oh btw i mainly only read yaoi)