Esoteric: How to scrape off Euro-License plates on Model Power Minis...

[chutton01]

Those Model Power mini vehicles which started floating around my local hobby shops recently are pretty darn good looking and have rather good paint jobs which just need a bit of dulling to look really good - yes, they seem to all be German prototypes, and some combos are rather weird - a Karmann Ghia pulling a '50s camper [%-)] ). Here's a link: http://www.modelpower.com/site/519087/page/276435
Unfortunately, the ones I've purchased so far (Mini Cooper, Merc C Sport Coupe, Audi TT, and of course a Karmann Ghia - sans trailer - still haven't found the Sprinter yet) all have European licenses which would not go well on my modern-era Northeast US layout - I was able to slowly scrap off the license on the Merc, but it still needed some paint touch up - any ideas for removing the euro-licenses from the others without ruining the very nice paint jobs. Not sure if I'm dealing with decals or pad-printing here...