Well, I do now. I do, now that I have this adorable English tomahto mug, brought back to the States for me by Sam because she is a swell friend and she knows I'm a tomato ranchin' bum (which means ass in British, but I mean "hobo"). And because Sam knew there would be a load of produce in exchange for her darling gift.
It so happens I'm in the midst of a tomato juice binge. For the past two years, I made small batches of homegrown tomato juice; I haven't harvested enough tomatoes yet this year to run through the food mill. But I will. And they will be pronounced tomahto.
So for this photo, I contrived to turn the mug around with the handle to the left (both drinking sides, left- or right-handed, are beautifully sculpted into the shape of a smile; makes me smile), so you could see the traces of (commercial) tomato juice inside.
The message on the side of the mug says "tasty tomatoes growing in the garden".
I'd say it's spelled wrong... but they know how to pronounce it over there in England.