yes when beavers poo it floats because they eat wood
Orlon
The epoxy resin that is mixed with it.
Use a cardboard box as a mold. Layup plastic wrap over it. Then layer your preimpregnated fiberglass on top and heat or lay dry weave on top and apply epoxy and resin and heat
Collagen is a type of protein (large molecules found in all lifeforms). These bind together to form fibres.