A problem with building this device is that you end up with something that looks like a safe flashlight that may damage your eyes if you look into it. Imagine someone turning it on, wondering why it's not shining properly and looking into it to see what's wrong.

Better to build this into a gun - at least most people will know not to point one at themselves if they happen upon one.

And of course there is always the ever-popular Macquarium: http://vividpicture.com/aleks/macquarium/

It’s a fish scaler.

The inconvenient truth is that the CN Tower is 1,815 feet tall and has been that way for about 30 years. http://www.cntower.ca/portal/ Blame Canada.

Love the site. Can't wait to try out Joost.