Ian Grigg wrote:

It's actually quite an amusing problem. When put in those terms, it might be cheaper and more secure to go find some druggie down back of central station, and pay them a tenner to write out the ransom demand. Or buy a newspaper and start cutting and pasting the letters... or slightly more professional - lettraset rub-down lettering. available in a wide range of fonts, requires no special equipment to use, and (although not of any value in this application) sufficiently acid resistant to be used on etch boards.