Great review from LJ:

Denmead, Ken. The Geek Dad’s Guide to Weekend Fun: Cool Hacks, Cutting-Edge Games, and More Awesome Projects for the Whole Family. Gotham: Penguin Group (USA). May 2011. 227p. ISBN 9781592406449. pap. $18. CHILD REARING
Roll out the red carpet-Geek Dad is back! Denmead has assembled another stellar collection of weekend projects to exercise your STEM skills, tickle your funny bone, and get your kids doing both while thinking you’re the best dad in town. From building a backyard zip line to tricking out your Nerf gun, Denmead subscribes to the hacking community’s philosophy that “if you can’t understand how something works, you don’t truly own it.” Each project thus has a learning/building/playing trinity, a trait that might just be the holy grail of parenting. He includes conceptual overviews, cost estimates, difficulty ratings, duration ratings, reusability ratings, and a tools and materials lists. Not only are Denmead’s projects practical, but kids will love the mildly dangerous feel to them.