This caught my eye in Focus DIY the other day, any one tried one?
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is a US site, available in UK from JML Direct (just change the $ to =A3, I think the Focus price was even more...). JML's site uses forwarding so you can't post a direct link to a product.I thought it might have been some cleaver ceramic heat element but looking at the Think Geek images and description it looks like it works by shorting the cells through the work piece.