Have you tried a manual stovetop frother? It's made of metal, and it has a plunger with a frothing head (looks like a coil-type whisk) on the end.
You fill it with milk, put it on a gas burner or electric hot plate, warm it until the milk is hot enough (around 60-65C). Then you take it off the heat and push the frother up and down until the milk is sufficiently aerated. Here's the one I have:
You fill it with milk, put it on a gas burner or electric hot plate, warm it until the milk is hot enough (around 60-65C). Then you take it off the heat and push the frother up and down until the milk is sufficiently aerated. Here's the one I have:
http://www.amazon.com/gp/product/B000X7GF40
It produces microfoam that is at least good as those electric frothers from Nespresso etc. Not as good as a steamer wand, but close.