<p>Any hints or suggestions (filament type? suggested settings? model sources?) for 3D printing minis to use in Dungeons &amp; Dragons?</p>
<p>I've done a couple where the support structures were difficult to break off without breaking off a hand or something.</p>
<p>I have a Lulzbot Mini (1), single-extruder if that makes any difference.</p>

Buckle up, this is going to be rough:
FDM printers are not the best choice for printing figurines in the 25 to 40 mm scale that is typical for wargaming and D&D games. Resolution-wise, that's the area of
resin
printers.
But there are ways to get some partially decent prints made:
you might want a small nozzle. 0.2 is about the smallest you can do without specialty extruders, so there is our lower limit.
You need to make sure to have a minimum layer time set, especially as the crosssections of figures are often rather slim.
Overhangs can be a pain
You might be better-served printing "meeples" than actual figurines.