Mold for Russian Gas Mask Lens Cover

This is a mold to create lens covers for a russian gas mask. I have used silicone with 00 ShA but it can also be a bit harder.

The parts fit together really tight. Wrap some tape around it to seal it. When the silicone is hard you maybe have to cut of some edges.

This is my first sample. I think the next one will look a bit better ;)