I'd love to collate them together. I need more. Please help.
My standby this last month has been to tip half a packet of flour onto the floor and just let them at it until they get bored. That way it is already on the floor so you don't have the added stress of watching as it falls onto the floor, thus leaving you with two surfaces to clean. I so very much hate mess that multiplies too much. It takes zero preparation too, which is a plus, and if you have a handheld vacuum they can do the initial cleaning themselves.
Stats: Flour on Floor
Minutes of peace (average): 7 to 15
Prep time: 0
Cleaning time: negligible (unless water gets involved).
Repercussions: Children somewhat white in places for remainder of day.
Downsides: Water involvement; potential flour tracking through rest of house or onto toys; nothing to bake those cupcakes with for the nursery bake sale tonight at 10pm when you remember...