Last year I made up a load of casualty markers for my games. I made several sets for single dice, sets of two and three, but I soon realised I needed a few more of the single frames. So while I was at Salute I picked up some more of the little MDF single's (made by Minibits) for a couple of quid. I've now expanded my existing set of single dice frames so I have more than enough for my own gaming needs. I also decided to make some extra frames for Postie, as a small thank you for all the games he runs for the Rejects.
We often use rule-sets that employ small 5 mm dice as casualty counters and they are forever being knocked over (sometimes even accidentally!) when we move units around. I've done a set of 50 for the shed-o-war which should be ample for pretty much any size game we play in future.