I downloaded a Batman bust and batarang from thingaverse…then combined them in Cinema4d and added the name of a 12 year (so my kid could give it to them as a birthday gift). The dimensions are about 8 inches wide by 6 inches tall - give or take.
Printed at .1 from Simplify3D with supports using Polymaker Polylite PLA…took about 36 hours. Really happy with how it turned out…so much I think I might do one for me.