No mate. My best advice is to trawl ebay.de - and make sure your seller does paypal.
You've got nothing to ein, zwei, drei, vier
It's strange, given the scarcity of decent complete bottles at anything like a reasonable price, that the enterprising Chinese haven't seen a gap in the market...
They will be avalable soon so Keith in Hong Kong tells me 
Steve.D
Must be a cheap way of confambling something that looks somewhere near for those without, albeit just an ornamental one ? Maybes someone could vacform one ? and then hide it in a repro cover with cup on it (also vac formed) MAYBES some sticky backed plastic, a fairy washing up liquid bottle and the immortal yoghurt pot along with some fuzzy felt ? Kitchen foil ? old copper bed pan in some felt ? 
Seriously though, I guess from a distance and if you squint if you just want a water bottle, though not the same shape, but the nearest cheapest thing (has a squared of bottom rather than a round one, but has felt colour in the brown) would be a swedish bottle, and those come up on ebay from time to time for a couple of quid ?
Past that it would be wait and watch
For the vague shape you could get plastic east german ones and recover the strichtarn cover or dye it dark brown, they are not 'right' but look close enough for a game and cost about £2 each.
"I think we are in rats' alley - Where the dead men lost their bones."