FIMO clay became very soft recently. That is either my hands are hotter now, or they changed the formula of clay. Even Fimo classic is very soft, not to mention Fimo soft. You don't want your clay to be soft when you are trying to make a cane :) A few days ago I had to make a lime cane for one order, most of which is translucent clay (Fimo soft). It was so soft, it reminded me a used chewing gum. So I had to leach out some oil of it: placed a thin sheet of clay between two sheets of paper, put a heavy box on top of the stack, and left it for a few hours. I didn't even have to pass translucent clay through a pasta machine. I have just stretched it with my fingers.
After a few hours I have managed to make a lime cane: