Just seen quite a large number of fair-sized fermentor type reaction vessels, 1 liter and up, and I reckon if I bag the right ones, I could potentially, after keeping a few for myself, make a good few hundred quid a piece flipping a few of the big ones on ebay. And of course could certainly make nice use of some large high tech fermentation vessels.
I'm getting pretty tempted just looking at them, underpriced and juicy for the taking and reselling (some of em anyway) the others on. Some are under £100, and I bet I could get five times that for them, in some cases a fair bit more. Those big industrial pilot scale fermentation vessels aren't cheap, the type with the flanged flask and head with multiple inlets, and closed by metal clamps. Worth quite a bit. Used for spawning things living, usually.