Why not?

Today Zach found a new badminton set that Grammie had picked up at Walgreens. He picked it up and wanted to play. So, after he asked and received permission, I got it out of the plastic it came in. As we were taking it out, Isabella said, "Can you teach us to play this tennis?" I replied, "Well, yes, but this is not tennis, it is badminton." She thought about it for a second and said, "Daddy, why don't they call it 'goodminton'?" Good question!