Don't answer that. Look at how cute these are first.
On my walks around the neighborhood I gathered up some acorn caps and sewed up some fabric acorns. I didn't pay attention to the shape; just gathered and pinched the fabric as I sewed along. Then I stuffed them and hot glued the caps on top. They are not the traditional acorn shape but they work for what I need. Soon I'll have a whole bowl full.
Have a happy weekend!