This is the face plate for the gameboy macro ds lite screen switch mod. 2 Options for download, One with 1 button and the other with 3 buttons.
Print with support and 75% infill to give the screw posts some help.
More info about the mod can be found at the blog below
Blog post - https://facelesstech.wordpress.com/2021/06/20/ds-lite-screen-switching-mod/
The author marked this model as their own original creation.