Woodlands couplings OO Gauge.

When helping Colin with his Parkstone Goods, the couplings were operated by magnets . I have shamelessly stolen this idea as shown on the left.
Simply put, a mini staple tail is soldered to the dropper on a Bachmann coupling. Must be a Bachmann coupler as the droppers are nickel silver so will take solder. Also the apertures are smaller than their Hornby counterparts thus they can't raise beyond the bar.
So- a lot of soldering and swapping of couplings.