For anyone who, like me, didn't know the word factice, this might help explain what they are...
(singular is pronounced fak-TEECE)
DEFINITION: "Fake!" But to be more precise, a factice is a bottle made for the purpose of display, not for sale. It is considered to be a "dummy" instead of the real thing. Factices come in a variety of sizes from small to giant. Most collectors prefer the giant size. Factices don't have real perfume or cologne in them (with a few exceptions); usually they are filled with a solution made to resemble the real perfume. An alcohol or formaldehyde mixture is usually used. The glass itself may be of the same quality as the bottles filled with perfumes but the contents are not. Factices are advertising pieces.
They make a grand statement displayed on your vanity or anywhere that you want to add a touch of glam.