This idea was spawned from me bunging on In The Night Garden and thinking “right, I have 30 minutes to cook and clean up”. It’s a cookbook and kids DVD, the recipies are matched to each show. So you bung on track 4 and cook the bolognaise. The instructions can have things like “you should be doing X by the time iggle piggle gets on the ninky nonk”.
I then thought you could generalise the idea to a website where people post mockups which occur in real life. E.g. writing with a pencil (e.g. 5+5) that makes the same tune as a song.