Howcast -If projects like the potato-powered digital clock are a bit old school, up your game with a simple electric motor to wow the judges at your next science fair.

Howcast -Learn how to use tweezers to shape glass from glassblower Ed Donovan in this Howcast video.

Howcast -Learn how to hold a softball correctly with the softball tips from coach Erin Goettlicher in this Howcast video.

Howcast -Learn how to use Kinect gestures in this Kinect for Xbox video from Howcast.

Howcast -Learn how to use the Kinect guide in this Kinect for Xbox video from Howcast.

Howcast -Learn how to strain henna paste from expert Lisa Butterworth in this Howcast video about henna and mehndi art.

Howcast -Learn how to lose weight on the 17 Day Diet from Carolyn Dean, M.D. in this Howcast video.

Howcast -Learn how to do strength-building exercises from pole dancing instructor Mai Yee in this Howcast video.

Howcast -Learn how to prepare the fondant to make a baby figurine from pastry chef Amanda Oakleaf in this cake decorating video from Howcast, part one of two.

Howcast -Learn about the different tools you need with fondant or with buttercream from pastry chef Amanda Oakleaf in this Howcast cake decorating video.

Howcast -Learn how to do a seated split stretch from personal trainer Layla Luciano in this Howcast thighs workout video.

Howcast -Learn about M4 accessories from Police Officer Keith Charley in this Howcast gun video.

Howcast -Learn how to assemble a Desert Eagle .44 from Police Officer Keith Charley in this Howcast gun video.

Howcast -Learn how to do a one-handed fan from magician Michael Patrick in this Howcast card flourish tutorial.

Howcast -Learn how to tee a golf ball from golf pro Michael Samaniego in this Howcast golf video.

Howcast -Learn how to do a fast slide on rollerblades from in-line skater Tim Phang in this Howcast video.

Howcast -Learn how to play a B flat chord on the ukulele from music teacher Jarret Delos Santos in this Howcast video.

Howcast -Learn how to do an in-the-hands riffle shuffle with a bridge (waterfall) finish from magician Michael Patrick in this Howcast card flourish tutorial.

Howcast -Learn how to do the Hindu shuffle from magician Michael Patrick in this Howcast card flourish tutorial.

Howcast -Learn how to do the catch a deck from magician Michael Patrick in this Howcast card flourish tutorial.

Howcast -Learn how to do the pressure fan from magician Michael Patrick in this Howcast card flourish tutorial.

Howcast -Learn how to know when to bet in poker from poker champion Nick "Nicky Numbers" Brancato in this Howcast video.

Howcast -Learn how to cat-proof your home and yard from board-certified veterinary behaviorist Dr. E'Lise Christensen, DVM in this Howcast video.

Howcast -Learn how to turn off an iPhone in this Howcast video.