These are some basic claws i have come up with.
Made from semi-flexible rubber, they should be LARP safe.
they take nail varnish well although in these pics we had to thin it to cover them all

easy to apply with nail/super glue and easy to remove.
still needs a few modifications to get them perfect but they will be supplied as a set of 16 varying sizes inc glue.
anyone care to comment?
