Geeky Projects for Dads (or Moms) and Kids to Share by Ken Denmead, the editor of GeekDad, a blog on Wired magazine's Web site.

Includes these cool projects and more:

Make Your Own Cartoons 
The Coolest Homemade Coloring Books 
Create the Ultimate Board Game 
Electronic Origami 
Cyborg Jack-o'-Lanterns and Other Holiday Decorations 
Windup Toy Finger Painting 
Create a Superhero ABC Book 
Model Building with Cake 
Pirate Cartography 
Parenting and Role-Playing Games 
A Never-Ending Demolition Derby 
Geeky Activities for the Great Outdoors 
See the World from the Sky 
Best Slip `n Slide Ever 
Fireflies for Every Season 
Video Games That Come to Life 
Fly a Kite at Night 
Build an Outdoor Movie Theater 
The "Magic" Swing 
Smart Cuff Links 
Light-up Duct Tape Wallet 
Crocheted Dice Bag of Holding 
The Science of Composting 
Home Hydroponics 
Build a Binary Calendar 
Portable Electronic Flash Cards 
Wi-Fi Signal Booster 
Cool LEGO Lighting from Repurposed Parts 
Geeky Potpourri 
Ice Cubes Fit for a Geek 
Exploding Drink Practical Joke