I haven't used more than one controller for years and am finally clearing out at a bargin price.
I have three PS3 controllers for sale and one PS3 4 controller charging stand.
$20 per controller, there is a black, blue (sold) or white (sold) one available.
$5 for the charging dock. (sold)
If you buy two or three controllers you can have the dock for free.
edit:
Blue and White controllers are sold.