Cheers guys!
TC- washers are 1"1/2 with 3/4" inside hole and 3/4" washers for the markers. The only thing I changed from Phreedhs is I had old space marine decals ( yellow so you can't see them through the thin plastic card!), so I put them on and then a layer of varnish to protect them. The magnetic strip I used was from my good lady's 'L' plates(she's now passed her driving test).
I've just realised that the one with the skull and cross bones looks as if someone has been buried!!