Interlocking Puzzle

thingiverse

Simple yet tricky. When you print this thing arange the model like you see it in the picture when you do so you need less supporting material and also you already have to separate it ^^. Since you are fiddeling around to get it separated use a little more infill or shells for the print to give it sufficient strength to last and not break when somebody is using to much force when playing with it (I speak from experience)