Created two versions - large and small
The smaller version is for 29-54mm rockets. The larger is for 75mm + . The larger one is beefier in every dimension.
To keep the plastic from marring the rockets, the mounts were designed to take a Neoprene strip in the holder. You can find it here:
https://www.amazon.com/Neoprene-Rubber-Black-Self-Adhesive-Sponge/dp/B0089FCMKY
The author marked this model as their own original creation.