Sounds like your best bet is to rpint it as big as you can on a sheet of A4 and then enlarge it on a photocopier (over as many sheets as you need to get the right size.

You could use an OHP sheet and draw or print a grid on and then overlay this onto your letter, rather than redraw it all? Make sure you get an acitate OHP sheet sutiable for your type of printer though.

If you're using word to put your letter onto an A4 sheet did you know that if you insert the letter as wordart you can make it much bigger?
Click on the menu across the top Insert > WordArt
Once you've selceted the font and typed the letter drag the corners of the box to make it bigger.

Also you can cheat word on how big the font will go - you know the dropdown menu only goes up to 72 point font? Well highlight the number , type your own (say 120) and press enter. Hey presto it's bigger.

Hope this helps.

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Rachel P getting married 31st July 2006