Easiest fundraiser EVER is the 50/50 raffle.
You get a roll of raffle tickets from a local party supply shop. (These are the style of tickets that have two sections that both share a unique serial number.)You sell as many tickets to each person as they want, for a fixed fee. Typical fees are $1, $5, or $10 -or some even do "an arms length" for a set price.
You give the participant one half of the ticket and place the other half in a bucket or box. At the end of the event you draw a ticket from the bucket and announce the winner. The prize is the half of the amount collected from ticket sales. Your team would of course receive the other half of the money!
You might even want to see if there is a local sporting event or concert going on that might let you host the 50/50 raffle during their event or check with your office. The options are endless for this one!
To get involved with Dress Up 2 Cure 2011 visit http://www.dressup2cure.org/