I would love to see a sheet that could be used to do markings on a road surface in 28mm. You could do say a European set and perhaps a N. American set. Crosswalk lines, dotted lane lines, turn arrows, yellow and white lines, stop etc.
This sure would make doing scratch build roads easier...
I thought at one time Fenris was going to do a stencil but it has never seen the light of day yet...
Darkoath