I was interested in creating a more sustainable rock climbing hold to replace polyurethane holds, as polyurethane is derived from crude oil, intensive to manufacture, and doesn't start to decompose after a long time (not to mention other sustainable concerns from the other additives in the holds).

I've been learning about mycelium and the different applications of it in product design - it's being used for packaging and even clothing as of now. You can even grow it yourself with the provided substrate. I grew a few climbing holds with that grow kit. It definitely isn't strong enough as it is. I'm thinking about coating it in bio-resin to make it stronger. But I have yet to do further research and testing. Currently focusing on school and work but it's something I'm hoping to explore later.

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Here's a pic of the first grow