I have a material that would be suitable for completely covering the sink. One piece could act as a tabletop.
I have 3 or 4 pieces in total that are about 2x7 feet, with a nice, smooth, white exterior laminated to a particleboard core.
Other pieces could be used as a sort of vertical surface; similar to how our benchtops in the Electro-mechanical/Computer Lab have vertical surfaces backing their benchtops. We could experiment them- rout holes and lids for sink access, try them out as whiteboard surfaces, etc.
They are originally vertical sides from a very large, flat-pack,freestanding wardrobe that will never be reassembled. They are very strong surfaces, and could be physically reconfigured together with the help of 2x4 or perhaps 1x1 lumber. But, they cannot be reassembled with their original hardware alone; due to their Ikea-like fiberboard construction and have been as much as wooden Ikea-like furniture could be.
I don't know if we'd want to cut them up inside, or even offer them as raw building materials, but they're fine to build out of, and I can try to start us off by bringing in 1 piece, with the option of bringing in up to all 4 of them. You wouldn't want to inhale the sawdust, but that probably goes for most of the fiberboard, OSB, and pressure-treated lumber you can find at home improvement stores all over the world anyway.