While thinking about wigs and disguises I stumbled across an old post with a fun idea for a new nano-injection. Here's a rough pitch:
VS Blending Skin-Pigment (or something adequately distinguished from chameleon nanos)
Allows the user to change their skin tone, hair, and/or eye color over the course of days or weeks (depending on balance). Also allows the user to apply a basic disguise on-the-go (similar to a hairstyler or makeup) by typing /blend.
Since skintone is locked in now, I thought this might be a fun idea. There's a bit of overlap with cyber-eyes on eye color changing, but this is more of a subtle approach, where cyber-eyes always seemed like a "IMMA CYBORG" kind of option. I don't think new chrome/nanos get put together much, but this seemed fun to me at least.