I have an illness which means that I need to have water always available - I drink about three or four litres a day. (no I'm not diabetic).
This means that when I'm driving I have to have an open bottle of water constantly to hand

That being the case, I'm looking for ideas on how to fit one, or two, cupholders into the van when I put it back together (for those who don't know it's completely disassembled, being restored).
The only aftermarket cup holders I have seen in motor factors are the type designed either to sit on top of a horizontal piece of dashboard or to slot into air vents in a vertical surface. Er, no good then.
I know that some Minors were fitted with little round ashtrays which swivel round under the parcel shelf when not in use, and I'd been pondering this as a starting point.
What do you think? All bright ideas gratefully received!

juliet