Fun! Fun! Fun!
A dad comes in with a sheet on him (like a ghost), holes cut out for eyes, and no shoes on. (Sometimes the shoes can give it away!) He comes in quietly and picks a tool out of my tool box. These are real tools that i have attached a song title to. I use program songs, father's day songs, and other fun songs that the kids know. While we sing the dad helps conduct with his tool.
We have had some pretty funny dad's conduct in pretty crazy ways. They are allowed to do anything except talk.
After the song the kids are then allowed to try and guess whose dad it is! This is so much fun. Sometimes if we have stumped the kids I let the dad say "Hello". After that it is always a give away!