From Tabletop.Land
PDF – Free
Tarot Card-sized Frostgrave Soldier Cards, designed to fit inside of Tarot Card sleeves, which you can easily find in major brands. The general idea for this size is to write the basic stats on the card itself, then put it in a sleeve and use a dry or wet erase marker for a game. Preferably fine-tip.
The PDF should be foldable and fit inside of a Tarot Card sleeve if printed at 100%.