This site has some really cool marble slides made from papertowel rolls, etc.

marble run from toilet rolls

De schubben zijn gemaakt van een halve toilet rol | thema zee & strand | www.peuteractiviteitenweb.com

Measure wind speed with a DIY Anemometer. An Original #kids #craft by www.piikeastreet.com #piikeastreet

Recycled Bird Feeder | Summer Nature Crafts and Activities for Young Children | with Pin-It-Button on http://rhythmofthehome.com/2010/05/summer-crafts-activities/

"Extraordinary projects from ordinary objects" This is a marble chute made from plain old packing styrofoam and toilet paper rolls. Pretty amazing.

Marbled Milk Paper - This science project for kids has been all over the internet and for good reason, it’s so cool!

Fab 'pom-pom' run!

cardboard biplane

Target golf game. Easy to make, lots of fun. - good idea for some indoor winter fun!

carton

Paper Plate Marble Track - This would be a fun activity when doing the marble activities in Cub Scout Wolf Elective #4 or when doing the marble belt loop.

Was für eine geniale Idee ! Muß ich unbedingt mit Mathis nachbasteln !

Cover a toilet paper tube in peanut butter and roll in bird seed. Then just slide it on a branch. Fun fall nature craft!

5. Use old paper towel rolls to make a marble slide. | 39 Coolest Kids Toys You Can Make Yourself

Hahahaha yesssss paper plate crowns

Paper Plate Marble Coaster!

toilet paper roll elephants! these would be great for letter "E" week...