Using them to illuminate your Craigslist and eBay listings can help make a sale, and amateur photogs can get professional-looking shots with one. Create your own using K'nex and a little know how.

Shadowman39 has built an 8-bit computer with the help of K'nex construction toys. Despite its imprecise mechanics, the machine solves simple arithmetic problems.

While newer Arduinos and Arduino compatibles (including the Hackaday.io Trinket Pro. Superliminal Advertising!) either have a chip capable of USB or rely on a V-USB implementation, the old fogies o… ...