This is a model of the grenades used by the Death Troopers in Rogue One A Star Wars Story. The design is made so that you can put a small LED light inside of the grenade and then reveal the light when you twist the grenade halves.
If you like the model and print it for your costume, please leave me a tip so I can justify to my wife my time making these things. Thanks.
Updat: increased the thickness of the walls near the light holes so it is stronger.
If you would like to purchase one of these already printed and painted with a blinking LED, you can find it and other items in my store.
https://www.etsy.com/listing/487459796/star-wars-rogue-one-fragmentation?ref=listing-shop-header-0
For the last year I have been out of work as I worked to save my son from cancer. During the last year he has been in and out of the hospital and I have seen the power of the 501st when it visits a children's hospital. It was this experience which motivates me. I hope you find my work worth while.
https://www.gofundme.com/healingnicholas