I saw someone make one from wood, and another used foam which they layered with craft foam over it to get the details. I bought a toy gun to try and use but now I'm having second thoughts. Especially since I see all these cosplayers in Spain and Asia with guns that light up! It looks super amazing! So going to see about some LEDs.
Also went to a photoshoot in my Shinya costume and got some shots but without the Dominator it really didn't feel like I finished the costume and had like only two poses. XD Still the photos look good and it inspired a friend to be my Akane! Psycho-Pass love is spreading!