Stone Activities for Kids - Happy Hooligans. *Always pack a sharpy and you can draw on rocks "on the go." Or when the kiddos find the ones they wish to use, just whip out the marker and have your kids help draw on the rocks.
Shoebox lid & craft sticks- these are wide ones, and low temp glue gun. Endless fun and all you need is a shoe box lid and Popsicle sticks! Build a marble run or "Plinko" with all kinds of different creative designs via Frugal Fun For Boys
Backyard or garden is a great place to set up a play area for your children. A fun and safe playground will make your kids away from the computers and be willing to stay outside. Just as this tyre race car track, it is easy and affordable to make.
Pilgrimage or World Catholicism idea? Wonder if we can upscale it for adults? -- from Little Passports: Grab the kiddos and craft map pendants! This is a great way to document the places they have traveled and/or the countries they would like to visit.