Mystery Fruit

Is it a dried up orange or something else you can think of that might grow on a small bush/tree in a garden? Look at the thing on the bottom...

It was very small, a wee larger than the size of a table tennis ping pong ball.

Edit: When blipfoto shuts down for a few weeks, does anyone know what those of us on consecutive streaks are supposed to do? What about those of us who were about to celebrate milestones?