I can't find a box to ship my speakers,,,,,,,,,,,,

I have a pair of klipsch reference floorstanders that I would like to sell but I don't have the original boxes to ship them in. Is there any company on the web or otherwise that I could call with dimensions and have a cardboarb box made for me?

Trust me,,,,,,,,,,I've check every place in NYC. No one has a box this size.