So I'm looking to do some larger prints soon, and I was wanting to do hand seps. David welker told me that he used one sided frosted mylar for his hand done seps. I'm wanting to go ahead and work on the keyplate today if possible and no where around me has said mylar that I can find. I was thinking of just going to hobby lobby and using tracing paper to get the keyplate on and then scan it incase this idea doesn't work. A Local print making instructor said that they used to use tracing paper and put oil on it to make it translucent. Anyone do this, or have any experience with it?