Then using my trusty (cheap) 25mm hole punch.
Then got all sticky until piles and piles of markers had been created.
The larger round blast templates are supposedly CD sized however having to cut these out by hand did lead to some slightly shoddy matching up, but there still good enough to use so jobs a good'un. some are double sided smoke/blast but there also a lot of ones that are just smoke ready for remains in play effects.
Still need to get the guys at Fenris Games to laser cut me the necessary shapes for the flamer templates and suppression fire templates but this will do for a start.