I'm after some long (i.e.several metres) lengths of elastic. They're for an old Kum-Bak tennis trainer where the ball is suspended on a length of elastic.
The ideal is plain square (I suppose round would be OK too, but the original is square) 'naked' elestic which is about 1.5 or 2mm square.
I can find lots of sellers of thicker, shorter elastic for catapults but not anyone selling this thin in long lengths.
I can obviously make do with dressmaking elastic with a woven sheath but the original stuff would be better I think.
Any ideas anyone?