How To Improve Your Handwriting - in the post you get advice on how to easily improve your handwriting, links to handwriting practice sheets, practice movements for your arms, the best pens to use and personal advice
If you're going to fake it, you may want to grab a medium-nib (or even narrow) calligraphy felt-tip marker. They're a couple bucks in most craft stores, and they are far more forgiving than fountain pens. Keep the narrow axis of the tip aimed between 1 and 2 on the clock face (25-50 degrees - just pick one and see how it works with your stroke) and try and write as neatly as you can.
Learning how to write in calligraphy is in many ways similar to learning how to draw. In drawing, you first have to master shapes. With calligraphy, the idea is to first master the basic strokes. Combinations of these nine pen strokes make most of the letters in the lowercase alphabet.