Warhammer 40.000 - Warhammer Age of Sigmar wound marker
This is a easy to print Warhammer wound marker for Warhammer table top gameing, like
Warhammer 40.000 and Warhammer Age of Sigmar
there are two STL Models for 3 dices and for one dice

a design for 16mm dices
 

added a 3 inch long Version