These are being sold today - you go to auction sites (such as ebay) they are listed numerously.
The Hoover hair dryer is unique and you don't see many of them...but still you will get $25 - $38.
Unless you're in an area that doesn't have lots of store access....you can buy a whole new set at COSTCO of the hair clippers for $39. These Charles Craft are selling from $8 to $25