One of our other projects. Date and price unknown right now.

Models of the HPH Models Company are manufactured using the vacuum-casting of polyurethane resin into flexible silicone rubber moulds. 

Information on the design and test flight experience can be read over at Wikipedia.

Ju 322 Mammut - 1:72

Please remember, when contacting retailers or manufacturers, to mention that you saw their products highlighted here – on AEROSCALE