You can be proud owner of big gaint companies like google.com, yahoo, Microsoft like Mr Sanmay Ved, who owned Google.com for few min.
He was trying for fun and it actually happened. He searching for google.com domain name and surprised to see it was available at that time, he proceed for payment and able to pay and book it for just 12 dollars.
Google paid him $6,006.13 which is spelled google in numbers. But the good part is Mr Sanmay donated all amounts to a charity organization in india.