There was an interesting link on TMP to the Koenig Krieg website where they had what look like pre-molded triangular markers with numbers 1-3 and a molded generic musketeer casualty. At least that's what I take them to be. Can't find a link to buy any yet so thought I'd have a go at making some of my own - well one to start with:
I know Paul Marsh has done similar for his 15mm BG but using stones to mark the numbers. Can't decide whether to go for that, this or this with white text on black? Either way, I have another 18 casualty figures I can use and need to get them done for the first BG game on Saturday!