As some users of this BB already know, at jdawiseman.com/papers/placemat/placemat.html is some free software, open-source as well, that makes elegant placemats for use in a port tasting (or the like). Clearly labelled placemats really do help avoid confusion later in the evening.
The code is in PostScript, so, though reasonably well documented, isn’t really suitable for those with no computer abilities. If you fall into that category, but still want, just post in a thread, listing what you’re drinking and who will be drinking it. PM me a link to that thread. When I’m next home it will take only a few minutes to make a useful PDF.
Example output follows, albeit at reduced size.

Examples
Some examples prepared for actual tastings are at www.jdawiseman.com/papers/placemat/placemats_list.html. (This ‘list’ edited April 2015.)