Get Into Leonardo DeCaprio's Pants
Leonardo DeCaprio's henley shirt smeared with fake blood, and “Dead Rabbits” gang trousers worn in the flim Gangs of New York are for sale on eBay! They have "Amsterdam, hero" tags sewn inside (Leo's character), and may still have a little Leo's sweat in them (it looks like he went commando in the film.) Bidding started at $15.

Jessica Alba's bra sold for $1,025.00
What would Britey Spear thong sell for today
Some interesting details on Leo's props below...
"The long-sleeved tan henley shirt features a single tan button below the crewneck collar, and has a smeared fake blood stain across the chest. The dirty and studio-aged shirt has no size indicated, and is tagged “Amsterdam Hero” inside by the film's costume department!"
"The brown cotton trousers feature the trademark red battle stripes of the “Dead Rabbits” gang down the outside of each leg. The button-fly pants have suspender buttons inside the waist, two front pockets, and an “Amsterdam” costume tag inside!"
Or maybe you'd rather get into David Cassidy's pants?