There aren't any and there won't be any time soon. Most of these rice cooking people don't even have enough money to buy a feature phone. They sure as hell won't need bitcoins, at least not at the moment. Why would rice cooking people need bitcoin for anyways? They have cash.
They usually accept dollars / euros if you give them ... I'm pretty sure if More's law keeps the past 40 years trend going, the processing power will make bitcoin physical transaction mechanics less off-putting and more appealing! ... or wait till someone makes and integrates an OS for phones with their cumulative processing power to make transactions almost instantaneous everywhere depending on the number of phones per square kilometer/mile!
That or people start looking at bitcoin alternatives that won't require those advancements just for bitcoin to work.