@andreintg will this become a 3D print? I see Toho has been marketing squirt guns; my experience with plastics was injection molding which would be easy to do if you had a mold, but perhaps 3d printing could easily invert a model to print instead the injection mold?
@teledyn oh yeah I've 3d printing a whole bunch of my models. I use ABS-like resins, the end result is hollow and just as flexible and sturdy as plastic.