I actually did this project back in May, but didn't have any good photos of it til I remembered to take some on the washing line last week.
I bought 2 sheets from Savers, cut the green one & sewed a panel to either end of the grey sheet. A larger grey sheet - king sized? provides the backing.
I cut a shape from some thin craft foam, glued it to a timber block, and made a print pad from some fabric foam on an icecream container lid.
After printing a hot iron set the paint ( black acrylic with J Sonja fabric paint addative mixed in).
Veey happy with the result- a new unique bed cover!