Well I found some material, not exactly what I wanted but I think it will look OK. I need to figure out how to make the covers, in an easy way as I am not a sewer and complicated will do me in.
The material is a big quilt cover so should be plenty to work with.
One side is white with big black flowers and the other is black with white specks through it. I'm thinking I'll make the covers reversible as well.
It cost $3 for the cover and a sheet, not a set, that I will also use in the van. I couldn't buy material anywhere for that price so very pleased with the cost.