In beauty and the beast how is Chip, carried and twirled around on a tray without his body showing?

In beauty and the beast, the broadway musical, how is the teacup, Chip, carried and twirled around on a tray with Mrs. Potts without his body showing beneath the tray? In most of the scenes, Chip has a cart beneath him which his body could be concealed by, but in one scene he is being carried on a tray by Mrs. Potts who is dancing and twirling with him. I saw his head on the teacup, but no body beneath it. I would like to know how the body was concealed or if the head was fake or something. I don't need the actual answer (though that would be nice), only your opinions about how it could have been done.