@Thomas_Sanladerer I need some #3DSenpai advice. My Daughter wants a 3D pen for Christmas. I don’t think I need to say more… but I’m torn between encouraging the idea of making and the pitfalls of a very flawed technology.
I guess there are worse gifts than one of those pens - if anything, it’ll teach her about the behavior of polymers 
You could try CreoPop, the light curing one.
+Peter van der Walt have the names of those apps handy my kids are foaming at the mouth to make something that they designed… my 6 yr old loves to watch the 3d printer run