Can we bring engineering to the paper in paper mache? It's a mix of a binder and a reinforcing matrix. PVA is common for the binder and is strong. That's fine as I think it's strong enough and readily available. Can we do better for the traditional news paper? I think that glass /carbon fibres would be incompatible as PVA doesn't readily adhere. Is there another filler? I read somewhere that they used to make air plane drop tanks and boats from some sort of paper mache, demonstrating it's engineering potential.
I realise that this is more materials science than pure mechanical engineering, but there are commonalities and it's all we have on SE. I'm deliberately avoiding Arts & Crafts as I'm not looking for a child friendly, mix a long with mom type of material. I'm looking for the dirtiest, leanest meanest (probably cancer causing) reinforcement that's as strong as possible drawing on modern technology. The only stipulation is that it should be available to the domestic purchaser (so bags of nano tubes are out). Is there something stronger than newspaper?