Battery Holder for 2xAA LED Fairy Lights

We had two cheap store-bought LED fairy lights that use 2 AA batteries. I wanted to secure them to my daughter's bed but still allow me to remove them whenever I wanted to quickly.

I made a simple slide-in holder. 
Internal dimensions are 34.20mm wide, 76.80mm tall, 19.20mm thick

I will consider an updated version with a clip in the future.

This was my first model, so it was a learning experience.