My first model upload! Originally I was using rubber bands to keep my diffuser paper up on these lights, but they kept snapping over time. 3D printing to the rescue! These clips were designed with a unique shape to allow them to hook into the recesses of the back of the light panel. 

Modeled with FDM in mind, should print flat without any brim needed. Files are included for single clips, as well as sets of 4. 

Although it was made for Dazzne D50 lights, it might also work for others.

Good luck and happy printing.