I designed this in Fusion 360 by creating the Deathly Hallows symbol and then scaling a font .svg file accordingly. This is a personal project for our wedding.

This printed perfect in PLA, and I would recommend using straws pressed into the cake and sliding this into the straws in order to not have the plastic touching the cake directly. The "stakes" are just shy of 3" apart at the widest. They are about 5 inches tall.