At Hokkaido Dosanko Plaza, an antenna shop for products from Hokkaido, there was a soft serve ice cream machine. There was a guy across from the machine who was eating exactly what I wanted . . . a melon/vanilla mix in a cup (not cone).
I asked him for help in picking which button I was supposed to press and he gladly obliged. I drew shades on him because he was such a cool dude.
You can see in his hand that he got a pack of chocolate-covered macadamia nuts for his trouble. 