I used a variety of materials including a linen tea towel (standing up at the back), some coiled wire, lace (over there on the right) and a hefty brass brush.
Sorry about the colours in the pic - the metal is in fact reclaimed pewter and is a lovely warm silver colour rather similar to unpolished sterling silver. Yummy patterns - yes? I was keen to use them and since the swirly wire was my fave I cut that up first. I opted for a kinda organic looking piece.
I cut out a nice oval shape from the swirls and an irregular-ish petal shape from the brushed piece. If I owned a hydraulic press, I would have domed the oval piece even more but alas I don't own such a creature so had to make do with carving the appropriate shape into a lump of wood and whacking the oval into it - not ideal but hey - it worked - more or less!
I patinaed the swirls and assembled the piece using brass rivets for contrast. This pic is probably a truer representation of the colour than my other photos.
There you have it - my low-tech foray into the world of texturing metals - no machines, no chemicals - just a girl and her mallet!