Office supplies trebuchet

Bored at work? Build your own 3" trebuchet out of paperclips and throw balls of blu-tac up to an amazing 4 feet. Step-by-step instructions are at http://www.instructables.com/ex/i/535B13C242DD1029AC23001143E7E506/ (or visit the On The Net article archive at http://www.digitalus.co.nz/onthenet/ for a friendlier, clickable link).

Check it out...