Turners Retreat used to do some I think, not checked recently but worth a look. I made a couple of Southern Comfort pens ( yes I know that is not Scottish but it was what was requested) To be honest they were a bit of a gimmick, I cannot say the aroma was particularly good but the gift was appreciated so that was the point really.
I have some if you would like....drop me a PM they come from a guy who buys loads and re purposes them.....i just get the off cuts