I remember Mark attempted something similar so it has been tried before.
Whether the items sell will depend on the price,quality and how close to the originals they are.A lot of people do not want to deviate from originality unless they are building a pimped out special.
I've been tempted to do something similar myself but wasn't sure there is a big enough demand for them to make it worthwhile.
Not saying don't do it, but try and gauge what sort of response you'll get before spending too many pennies