A snap on base that holds a Battletech miniature (or any other nominally 31.75mm base - I've found the bases provided with the newer miniatures vary in size up to a mm).

Printing:

• Any layer height, no supports
• Either print multiple bases or set minimum layer time long enough to let flag holder cool between layers.
• Again - if you print just one flag base then the part where you stick the flag in will be a melted mess!  You need to either print multiples or set a minimum layer time so that the previous layer can cool enough.

Print out a flag, tape it to a toothpick (or print it on a mailing label and fold the label over the toothpick), and stick it in the holder.  Then, snap the base of your miniature into the flag holder.

Lots of different designs were tested, the posted design provided the best support and most secure latching onto the miniature base: