A little masking tape on your tool-rest can be used to easily transfer a pattern to the workpiece.
Do you need to make a number of repetitive parts on a lathe? Using a pattern is a good way to ensure all of the pieces turn out alike but it can take time to transfer the dimensions to each piece. A simple solution is to place a piece of masking tape on your tool-rest and mark the dimensions on the tape. With the dimensions on the tape you won't need to pull out your template as often.