trying to find a replacement brookstone projector replacement cable

There is a photo, go to www.ebay.com search for " Pocket Projector for iPhone4 Device from Brookstone" look at the auction picture for the photo. This is a standard USB cable with a ferrite noise filter. Any cable with the same ends will probably work just fine. But if you want the interference filter, then search for " USB cable ferrite "

Or just buy a cheap one like this one: " 2 x Gray 6ft USB 2.0 A Male to B Male W/Ferrite Cores Printer Cable"