I've never worked on a costume before for any convention. As a why-the-fuck-not moment, I decided it would be awesome if I could make a hat for a friend - of which I have next to no experience at all with apparel crafting. How hard could it be?
10hours later, and quick DIY sewing, I managed to make an Iku hat (she's from the Tohou Project), and I gotta say, I'm pretty proud of it.
Materials: One giant brimmed women's sun hat, an apron, sewing kit, spray paint, and lots of love.
Rating: This is my first project...and it definitely shows. However, it's the start of a glorious trade!