If you are still searching for an chistmas present - This might be it. It is a simple, easy and personal present.
Lithophane is a 3D-printing technique, to 3d print Pictures. The picture becomey visible if you shine light through it from the back.
On the following side is a Tutorial on how to create the custom lithophane keychain: https://iqwertz.github.io/lithophanekeychain/index.html
If you dont have the time or tools to create a keychain with the tutorial. Send a mail to: juliushussl@gmail.com and I can create the .stl for a few bucks.
print standing
enable: support on build plate only
0.1mm layerheight
4 Perimeter
The author hasn't provided the model origin yet.