This here is the Wrist Rocket. Handy for packing a punch in a small package. It comes in a 5mm peg (left a little long so you can trim to your liking). Designed with TF Prime Bumblebee in mind (First Edition), should fit any voyager, but should be a great fit for Deluxe figures with mounts on their arms (or elsewhere). Feel free to contact me if you'd like a tweeked version.
I will also be adding a version that mounts to hard points as well so your Aramda figures don't have to feel left out.
Strong and flexible materials recommended.