>>10624946If you don't have the space for a resin printer, there is no point in looking into a desktop injection molding machine. They are more expensive and larger than 3D printers anyway. You also need to make the molds which can be done by getting them made via CNC, 3D printing them in a high temp resin (using a resin 3D printer), or molding physical parts with a high temp silicone within an aluminum mold frame.
The biggest benefit though is that you can end up with custom injection molded parts that can look, feel, and function nearly identical to factory produced toy parts.
Top pic CNC mold, Middle pic 3D printed mold, Bottom pic silicone mold inside aluminum frame.