My favorite, however, are the egg vending machines — which I had never seen before coming to this part of the country. Most of them are simple, brightly painted affairs (example here) in which you insert coins, open door, and get bag of eggs.
My latest find was out on the edge of the city near the coast.
The stylized kanji on the noren, 卵, reads "egg."
How could you not feel confident buying from such a clean, well-tended place?