Nope - its a Parisienne scoop or melon baller.
Ah! I see - I knew you would know what it was and probably have one!Mine, similar to the second picture, with different size scoops, has holes.
When @morning glory wrote it had a handle, I was envisioning something that moved.
This is one I prepared earlier but I never noticed the green/yellow tinge. Very strange. Please ignore the tinge.
View attachment 28862
I think the hole helps to release the balls as you make them. You can use it to make potato balls too - from raw potato then fry them.
I should have got this as I have at least one of these.
Russ
What do you use it for?
Nigella seeds