First Model is the Updated Model and the second is the old model before suggestion

Print in Yellow Filament as if you are using this to use as actual codes, you'll want to print in yellow

Use a black permanent marker of some sort to fill in each hole to make them black as Snapchat needs to find black holes

Snapcode seems to be working so far on this. In order to make a snap code for 3D printing youself it's a simple process

(I'll be making a youtube video soon, press the link when it is here)