O is for origami, and there are good kid-friendly patterns at ActivityVillage.co.uk. Mama Squirrel used some of these patterns for a co-op class last Friday, and the mostly-eight-and-nine-year-olds were able to follow most of them without trouble. We started with this printable puppy, moved on to a paper cup and then a basket (very similar); then we tried boxes and booklets.
On a frugal note, Mama Squirrel found packs of coloured "craft paper" at the dollar store--not construction paper, these were sheets ranging from origami-paper thickness to something a bit stiffer. Ponytails helped cut a bunch of them into squares, and that easily gave us enough paper for our class. We also had some sheets of Roylco's animal print and camouflage paper, left over from a long-ago craft, and the boys all wanted the camouflage paper. Just an idea in case anyone thinks paper folding is a girl thing...and some of Roylco's ethnic-print papers would also make great origami paper. (I don't work for Roylco, I'm just a happy customer.)