I bought a new pitter last year that works for cherries and olives. It
worked fine up until this last batch of cherries. They seemed to have overly
large pits! This is the one I have:

https://smile.amazon.com/Cherry-Pitt...=cherry+pitter

The way it works is that you put the fruit in the opening on the side, hold
it over a bowl or whatever you want to use to contain the pits, then press
down. The pit is then shot through a hole in the bottom. Then you turn the
pitter sideways over whatever vessel you are using to contain the fruit.

This time it was a big fail because about 80% of the pits were too large to
be pushed through. Weird because they weren't overly large cherries. Luckily
I was only serving the fruit salad to the family and not guests because the
end result was not so pretty. I wound up having to sort of rip the cherries
open to pull the loose pit out. Yes, I could have used a knife and it would
have looked neater, but I was in a hurry.

I have used the pitter many times prior. Normally it punches a neat little
hole into the side of the fruit, the pit is gone and that is that.