I thought that I would share a pic of my DIY SS Truck counters before (on the left) and after (centre) spraying with gloss varnish. Note how the black numbers and vehicle drawing have become much more pronounced, and compare favourably with the PzIV counter from Elsenborn Ridge.
The counters were printed on an A4 label sheet, stuck onto 1.4mm mounting board, side cut into strips and individually cut using a large pair of kitchen scissors. I finished them off with a No.18 X-Acto blade in a "C4 corner cutter".
I mounted the counters on a piece of card using White Tack, then sprayed them with 3 thin layers of inkjet paper gloss varnish 24 hrs apart (warning: the varnish smells until it has set!). This ensures that the varnish is not damaged during the cutting process, and it helps to seal the edges. The counters were then turned over for the reverse sides to be sprayed.
They look and feel very similar to regular PG counters.