I have just brought a set of Ford RS mudflaps (the rare ones

) but I want to get some new clips. I have tryed my local Ford but they don't do any

tryed Halfords and its the same there.
Anyone have any ideas?
I just want something like a C clip with a tightening screw on the back. I don't want to drill a hole in my kit to screw fix them as my kit is mint and don't want to ruin them.