Well, put mine on, but I'm starting to think I should've stuck with the 'brand new' type as opposed to the artificially aged type. I think if maybe I get some enamel/primer on, and start scratching, they'll look a bit better, but I'm stuck as to what type. The instructions said 'Plastikote', and while I know where to get some, I'm not sure on the exact flavour. I saw a few yesterday which were clear, being enamel and paint, are these acceptable. Don't really want to shell out for something which is useless, or end up painting over them.
Also, does anyone have any pictures of scratched-off decals I can work from?
Unless you are going for the constant parade look,... I wouldn't worry too much. I go through about three pair of decals each season,... but that is because the helmets they are attached to, get a hell of a lot of use,... and I portray the front line look. I have damaged many a decal , just by taking off the camo helmet cover,... the small hook scratching.
Here is a pic from a photo shoot we did in Tiger-1 a while back,... I feel the decal in this photograph,.. for me anyway,.. is how you would expect to find it,... on a grenadiers M35,..from weeks of front line action......
Cheers Nelze, that's what I'm talking about ! 
i have aged decals before with a bit of burnt umber oil paint but really there issued new so dont really need ageing and like Nelz says in tiem theyt will age by themselves, if you want to remove some of the decs, try covering with masking tape and then peel it off, this works ok with my decals
DISCLAIMER: dont blame me if it pulls the whole thing of 
CHEERS
Anthony
i did mine with tape,and they look shithot
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Kick the helmet around the garden a while. It works.
aka Stigroadie
AFRA
better by design
"Truth is a shining goddess, always veiled, always distant, never wholly approachable, but worthy of all the devotion of which the human spirit is capable. "
the tape way as done by my team mate does the trick m8
I have only from my Wehrmachthelmet pics on my PC, but it works also pretty good with a gaslighter and sandpaper......
Ehre, Treue Vaterland!!! "NON SOLI CEDIT"
Tom did me a favour last night and tore the flag decal with his fingernail whilst 'testing' it... He thought I was gonna be mad, but I did the same to the other side and it looks a lot better now.