Had an idea of scratchbuilders swapping slightly odd materials which they've got plenty of, or they don't need any more, for similar from other scratchbuilders. I've found a lot of materials I use come in big quantities, and I'm unlikely to use the lot of them and they take up too much room. Typically swoppers should be in the same country, or continent perhaps, to save on postage.
To start with I'm offering up a single lot of;
100 wooden coffee stirrers, that's over 45 foot of planking in total,
as seen in the fascinating post here;
http://6milphil.wordpress.com/2010/11/03/stirring-stuff/1 textured plastic dining mat, approx A4 size, suitable for all kind of detailing, as seen in the pic below as a window screen;
Half of one polystyrene ball, 100mm diameter, cut to provide a dome - so this is a ready to use dome in effect:
If you're interested state what you'd swop for the above and I'll jump in and accept the most appealing offer, should I get any at all!