Today I did that
cut a piece of "suede" fabric.
glue the middle with spray glue
[URL=http://www.casimages.com/i/141015123337826168.jpg]

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then trim it to the desired shape
then finish it by glueing all the piece on the part
et voila
the fabric I've used has blue shades under the sun ... I may try with another seller (But before I have a 56"x2yrds piece to use ... ^^).
If you want, I can do it for you on any parts (the part I show Is very hard to do due to its complex shape ... It took me around 2hours for both)
I've also painted the "bumperettes", but It's not completly done, I'll show it to you
more comming soone (I hope !)