Illusion Origami Paper The Origami is an extremely clever and puzzling illusion invented by Jim Steinmeyer. Here's how it looks to the audience: A small box, about 12 inches square, is unfolded, becoming large enough for the assistant to enter it.... http://articles.top501.nu/2008/07/09/p...

Business cards are the most underutilized andmisunderstood marketing tool in business. Manypeople spend the bucks for cards and don't make aneffort to get them into the hands of those who canhire them or buy from them. Everyday people throw away sta... http://www.websy.net/blog/Advertising/...

Arrows, and similar marks, printed in the margins of sheets as register marks for printer and perforator. An arrow-block consists of four or more stamps, with an arrow in the margin. http://www.philatelicdatabase.com/2008...