Coincidentally, yesterday, I found the charger in my workshop had suffered some water damage. When I threw it into the bin, I noticed it was the original charger from one of my N900s.
It was the UK plug version though (AC-10X) so no great loss to Wasmachinemann-NL

I still have two near mint N900 sitting in a drawer if anyone has a need for one (no chargers though!)?