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just found something that would useful, custom cut-vinyl decals... link to a couple of examples...

Custom Vinyl Stickers and Vinyl Decals
Etched Glass, Frosted Glass, Custom Frosted Glass Etching...

ok, some time ago i used a sheet of galvanised iron to bend wood, I used a jig based on a guitar making wood bending model i saqw on internet, you can make someting similar,, just match the radius...

why don't you take a good close-up picture of the blade and post it, a friend is prety good in photoshop (she is graphic designer) and maybe she can help...

the sheets are press-n-peel just google it, you can find them in any radioshack, here's a how-to How To

this guy uses regular semigloss print paper, i've seen people using magazine covers for this...

you can achieve grteat presition in acid etching, just make the template in your computer, print it on one of those sheet that are used to print circuit boards and then cover the rest, use muriatic...