I have no idea how common these are, but I encountered
kiwi berries for the first time yesterday. They were 50c for a half pint clamshell container at Stanley's Fruits & Vegetables on Elston, so I figured why not try them even though I had no idea what they are. It turns out they are almost exactly tiny kiwi fruits. They taste and look nearly the same on the inside. As a bonus, they have no fur or rough peel.

(Picture from Wikimedia, Creative Commons)