Header Challenge - Macro

 

I do not have a true macro lens, but my 55 mm focuses about 6 inches from the subject and cropping yields good close-ups. The item in my header fits the item below to make a common kitchen accessory. Recognize it?

 

An acorn cap  on the driveway

Apples - about to become apple sauce

 

The item is the top knob on the paper towel holder.