Does anyone know of anyone who sells Metz capes that are dyed in 2 colours 50/50 ?

Dont know about 50/50 but you can buy half capes from various outlets.

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It is in truth not glory,nor riches, nor honours that we are fighting,but for freedom - for that alone, which no honest man gives up but with his life.(Declaration of Arbroath, 1320)

What you would have to do is buy a metz cape cut it in half then dye each half seperately, the colour of the orginal cape depends on what finished colour will be, but a white or cream cape is a good starting one to dye

Jon @ Celtic Fly Craft will sell you a split cape.

thanks for the help folks, will phone Celtic fly crafts tomorrow.