Mussels use byssus threads, which are a keratin+polyphenolic protein core coated in an adhesive protein mix. The keratin/polyphenolic core provides the strong p

Mussels use byssus threads, which are a keratin+polyphenolic protein core coated in an adhesive protein mix. The keratin/polyphenolic core provides the strong part, then the adhesive obviously adheres it. Both parts are very important, and I imagine it'd be hard to have the adhesive work well by itself. The process of creating the threads also seems relatively difficult, but Google seems to have some byssus-based adhesives. Who knows, maybe you'll end up with something interesting. Particularly this, seems like it might not be too difficult to make at home with some equipment and knowledge: https://www.livescience.com/6974-glue-derived-clinging-mussels.html https://www.livescience.com/6974-glue-derived-clinging-musse...