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Allright !! You'd need quite some blade to get a decent balance with those handles !! :D

make a model in wood, sealing it with wax
and then casting it in silicones (there's varieties for that exact purpose)
using silicones should enable one to release the scales from the mold without...

I've actually thought of working with this stuff myself (lots of cool applications possible) but haven't gotten any further than investigating local suppliers (what's best to use etc... ).
Keep us...