We ended up buying a LEGO advent calendar. A friend gave us a chocolate filled one last Sunday but Monday morning Mayhem woke up at 5:30am, went in the living room, opened all the windows & ate all the chocolate in it. Howls of protest from Havoc when he discovered it. Mayhem cannot assemble the LEGO figures & knows it. He seems to understand that after lunch every day we open a new window & doesn't bother the box any other time. I think we may make this a regular feature.
Credit can be found at my Digishoptalk gallery
PS thanks to my secret santa for the Christmas kit :)