Normally I listen to a lot of French house, electro, and synthwave, but lately for working on armor I've been listening to more pop punk/emo. So bands like MCR, All American Rejects, and Sum41. I've also been doing painting, decals, and weathering lately on projects and pop punk/emo just feels right for that. I guess it just feels kinda artsy, do what you want, let loose kinda vibes.
For con crunch I gotta go with It's Bugsnax by Kero Kero Bonito. That song is good at any time, but something about those late nights makes it hit different.
For day of the con, aside from Halo soundtracks, I also go with Cryoshell. They made the music for some of the Bionicle commercials and those will always be hype to me. Especially Closer to the Truth and Gravity Hurts.