While doing development in Papervision 3D again for a campus map, I thought it would be fun to mock up a dynamic size comparison tool like the one at sizeasy. The demo has the obligatory iPhone along with a BlackBerry 8700 and a deck of cards. The measurements are in millimeters, but you could change it to whatever you want, as long as all of the objects matched up. You can also add a URL to whatever image you want to use for each object: