Well, to give a small example
More here
http://www.spookeend.nl/gnr/archives/logos-and-skullsIn good quality, (even way better and bigger then online on local drives, requests are welcome for images), i have not yet found one other place that has stuff like this in good quality online, so here, for any-one to grab, have fun.
There are more, so, if you have a shirt or patch (backpatches are best, the smaller ones are hell to work on), high res images are welcome, so i can edit and upload more.