Simple bendable door stop.

Just bend it, and put it under your door to block it.

2 sets :
A = Not bent. 3 version : 1mm / 1.5mm / 2mm
B = Pre-bent. 3 versions : 1mm / 1.5mm / 2mm

Depending on the space you have between the ground and your door, and how much you want it to stop, choose the model that suits you best !

[EDIT] Thing broke after 2 days under the door (PLA)... you might want to try some material more flexible/resistant than PLA ! (ABS ? Nylon more likely). I'll try to print one in XT-Clear copolymer (from ColorFabb).

[EDIT 2] ABS seems perfect for this ;)

Enjoy a nice breeze !

Printrbot

Simple Black

Doesn't Matter

No

Whatever

50% (less for more flexibility but weakness too)

Heated bed recommended (70°C for PLA)
You may need to add a brim in order to keep it stick to the bed.

ABS not tested.