If I leave fondant shapes out....will they harden at all? Never used it but I am trying to cut Out star shapes to put onto wires for a Hollywood themed cake!
Fondant will harden up to a point (depending on how long you leave it out). If you want it to really harden up, you can mix it 50/50 with gumpaste or knead in gum-tex powder to the fondant, which will harden it up really well. That, or you can use straight gumpaste (which is a bit harder to colour).