How do I transfer a pattern to plaster?

[TFrosst]

If I poured a flat piece of plaster and want to start carving something in it, how should I go about transferring the pattern? Would carbon paper work?

 

[division 6]

Carbon paper should work fine or you can just go over the design on the back with a pencil than trace it.

Or just use a fair amount of preasure with a ball point pen to indent the design into the face of the plaster.

D6