We’ve covered Third Hand hacks in the past. This one is especially cool ’cause it allows for up to four “arms” on the unit and you can swap out different types of fingers. The builder used Loc-Line components. While it may look like a kid’s building set, Loc-Line is a snap-together systems of tubes (yes, it’s a series of tubes) for delivering cutting fluid on machine tools. But as you can see from this Flickr set, it makes a bitchin’ solder helper rig, too!