Who's Dad is Leading?

I saw the cutest idea on Facebook! I don't know if I can tell it well enough here but I want to try to remember it! It was a sheet with Dad's clothes pinned on it to look like a 'flat Dad'. There were holes cut in places for two arms/hands to come through and for a tie to come through. A Dad stood behind the sheet (hung in the Primary doorway). He put his arms and tie through and "led" a song (just waving his arms around). At the end the kids guess who it is. Then the sheet is lowered and the Dad is revealed. It looked like fun!