What do yall do with /very/ old cosplays -- ones where the construction isn't good enough to try selling off to someone else, or ones from fandoms that have died down in popularity / obscure fandoms?
I have nearly a dozen storage boxes stuffed with old stuff, and am about to buy another one. These are the biggest hassle every time I move. I don't think the fabric's good for reusing as scrap material, either.>>10006207
For the jacket, cotton sateen (going off what your experience level seems to be). If you're comfortable working with trickier fabrics, stretch metallic vinyl.
For the trim, any metallic gold fabric will work for the binding/bias tape.>>10006337
Good instinct. Unless the felt was prewashed, it might shrink unevenly against the denim. Tide to Go or other stain remover pens will help spot-clean.>>10006501
Doesn't hurt to ask if they're looking for an extra pair of hands. Don't go in asking if they'll teach you; ask if they need volunteers in the costume department. If you build up rapport and good relationships, the time could roll around where one of the senior members might sit you down and run you through some sewing stuff.
However, don't expect too much (I second the other anon's recommendation to actually get formal sewing classes if you need the base experience). I volunteered at a community theater once (with several years of sewing and making alterations to other people), and they just had me cleaning out the costumes storage area and didn't contact me again after the first night. In retrospect, the older ladies running the department might have been a little territorial about it.