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If you are tall, you have the opposite problem and need to lengthen the pieces of a pattern. Generally, 3"-4" taller than average would require adding about an inch to the waist length. To do this, you will cut your torso pattern pieces apart at the lengthen/shorten lines and spread the pieces apart 1", keeping the parts of the grainlines aligned. The same applies to sleeve length. This is why it is so important to make a test muslin before cutting into your fashion fabric!
If you are looking for a coordinating collection of ties, check garage and yard sales. Quite often, a man buys ties in a limited range of colors and shades. When he's ready to dispose of them, you can often find a group that will work together for a project. Also, your favorite thrift store may be the recipient of a collection, so check on their stock regularly.