PRANKSTERS: Textless keyboards. Bottomless paper clip holders. Sticky notes blanketing the entire cubicle.

Most who've worked in an office can say they've either terrorised their colleagues with office pranks or been the victim of at least one hoax. Now, all the Dwights in the corporate world can get their revenge.

John Austin, a former toy designer, has written a manual of sorts for tricksters called "Cubicle Warfare" with instructions and illustrations for practical jokes.

The tools required for some traps include Velcro, fishing line and inflatable dolls.

"The office prank is like a gift — sometimes you receive them and sometimes you give them," said Austin. "As long as they are light-hearted and not malicious and you don't try them on people that are up the ladder — it can take the edge off of work a tad to bring in a little bit of the playground and some horsing around."

To avoid becoming a target, Austin said, employees should avoid letting co-workers know if they have "a case of the Mondays," and keep personal items on their desks to a minimum.

Austin's favourite prank?

"There's an episode of 'The Office' where Dwight's wallet is stolen, and he has to buy it back from the vending machine," he said of the NBC television show. "But of course he had to borrow a dollar from someone first."

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SUPER TUESDAY: Thank goodness it's ... Tuesday?

A recent telephone survey found that 57 percent of executives found Tuesday to be the most productive day of the week for employees. Monday was the second most popular answer, but only 12 percent said so compared with 26 percent in 2006.

The survey of 150 senior executives including those from human resources, finance and marketing departments also found that only three percent said Friday was the most productive day of the week.