Some time ago my son and I built a Revell 1/72 scale Messerschmitt Bf 109 G-10 model kit. The canopy has not been glued on as I wanted him to paint it first, but it ended up sitting on a shelf for months and at some point one propeller blade has broken off and been lost. This month my son wants to paint it, so it's time to repair it as it'll look odd with only two blades instead of three. I was first going to try to use some plasticard to repair it, but that was a non-starter as the blade is very thin and has a twist to it that would be extremely to replicate in this way.
Luckily I have some Oyamru "instant mold" that I bought a few years ago, and has previously been used in other projects. This stuff is great, as it's a thermal setting plastic - when it's put in boiling water for about a minute it goes very soft, and then hardens as it cools. Once cool it holds a perfect impression of the item it has been molded around. I couldn't find any "green stuff" putty kicking...
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