This is a stop / tap tempo guitar pedal enclosure for the Boss RC-2 Loop Station. I got the name "Stap" by combining the words stop and tap. The enclosure lets you install a female 1/4 in audio jack, and a footswitch so that you can trigger the tap tempo, or stop loop, features of the Loop Station.
This is printed in three parts: top, middle, bottom. I just used super glue to assemble the pieces after painting. I also added a support in the middle of the enclosure so stepping on the button really hard won't break the top piece (you can print something, or just insert a block of wood).
The author hasn't provided the model origin yet.