This pendant depicts the collar insignia of House Atreides, from the 2022 version of Dune. You will, of course, need to source the pins and caps.
If you don't have a 3D Printer and you want one of these sets produced, please send me a DM and we can arrange for me to print one for you :)
Or you can order one, complete with pins etc, made to order in my Etsy store - www.etsy.com/uk/shop/enterprisexddesign