Toothpick and Gumdrop Construction: Cost: 1 dollar for the box of toothpicks and 1 dollar for each boy a giant box of gumdrops SOO FUN! Definitely will do this again. Great for Cub Scouts - could use for constellations or for science molecules.
"Vertical Landscape" by Eiko Ojala. It looks like a paper landscape but the artist actually works digitally and hand-draws all the elements to look like they're cut out of people. (Hint: the shadows help!