Battery Box For String Lights

Just a battery holder box for cheap string lights. Existing box was crap, had to design a sturdier and better holder.

I also used this as a template to embed into base of transparent PLA models to power illumination.

Works with cheap string lights:
https://www.amazon.com/MIMIVIVA-Outdoor-Operated-Corridor-Christmas/dp/B07XSJVYRJ/ref=sr_1_126?keywords=battery+led+lights+christmas&qid=1574801404&sr=8-126

and probably work with these as well:
https://www.amazon.com/Dobar-Holiday-Essentials-Battery-Operated/dp/B077NJTG86/ref=sr_1_160?dchild=1&keywords=battery+led+lights+christmas&qid=1574801540&sr=8-160