I have printed https://www.printables.com/model/97987-connectors-for-custom-built-acrylic-showcases/comments/1210668 and used it as printer enclosure as you can see here https://www.printables.com/model/97987-connectors-for-custom-built-acrylic-showcases/comments#preview-comment.
When I need a hook inside the enclosure I have designed it as a complementary part of this design.
The author marked this model as their own original creation.