A set of Portal (and Portal 2) themed drink coasters and holder.
Looks best when printed in multiple colors with a multi-material printer or by pausing the print midway through.
The holder will hold 4 coasters so choose wisely from the 10 included files (or print multiple holders!)
Vectors for the logos were taken from https://www.deviantart.com/zeptozephyr/art/Vectored-Portal-Icons-207347804
The author hasn't provided the model origin yet.