So maybe its "scanning at the speed of light" claims are a bit overstated, but BlinkScan's capabilities are still pretty impressive. The peripheral scans, crops and straightens images in the speed its name implies, pulling out individual files when you can several images at once. After the break, you'll see a YouTube video wherein the BlinkScan does its thing with 47 coins at the same time, giving each its own individual file without ever having to open photo editing software.

You can see all of the Insert Coin semifinalists here.

Growing Up Geek: Julie Uhrman