Lucky moment: I was looking for a fabric in Sweden called "Trika", but unfortunally I only found one that was depressing blue, and I only had a week to finish my costume for the con. ;_; But then I found beautiful, shiny happy blue duschesse (Baroque satin?) that just shined Stallion! ^_^ I turned the fabric inside out to have less shine.
Easiest part: Sewing the blue parts together.
Hardest part: Sewing 6 meters of white trim... *_*, Yes, 6 metres. My back hurt so bad afterwards I had to lay down and rest.