anyone know any info or tips on making camelbacks for 1/35 scale soilders?

thanks

Two part epoxy putty. My newest one is fairly devoid of detail, just a flattish rectangle.with the filler cap near the top. This is replicated with a cros section of an old motorcycle part. (I have no clue from which kit or how long it's been in th pares box) Add D ring to the corners for attaching to body armor, as the straps are rarely ued, and would be more work to replicate. Suture thread is the perfect shade of blue for the drinking tube-at the least the monofilament suture thread I have.
Older issue Camelbacks had a compartment on the lower portion, easily replicated from super fine brass mesh or possibly panty hose. (Wedding veil is too large)