Use tire weave to improve the fiber component of a | Richie Sowa style bottle island | to the point to make it “somewhat seaworthy” (in the order of Kon-Tiki)… check the tire weave thread
specificly this post…and the video of "Kon-Creaky"
Postulate: we need to see composite materials in a wide perspective. This is a tire weave boat (fiber component) with light fillers (plastic bottles and styrofoam)
I suggest to upgrade it with the floating rock material mentioned above -
… to something that looks less like a floating junkyard and more like a solid island…
…could have an appearance like this - this would not create negative emotions where ever it gets - parked…and its seaworthyness can exceed an ABS approved ship as it is guaranteed unsinkable like a foamblock…
That is definitly something solid you can step on to have the investor phase 1 key conversation…
… and be successful in the intent.