Fancy your very own time machine, already fitted with a flux capacitor and loaded with plutonium*? Then check out this DeLorean for sale on eBay. Once you've won, take your new baby out on to the road, hit 88 miles an hour and Bob's your uncle. (Or is that your nephew? I never could get the hang of paradoxes.)
*plutonium not included, time machine may not actually travel in time.