Upgrade possibility?

While still waiting for my kit to come, I’m looking at the upgrade options for my watch. Seems like I can switch out hands and dials, put a different strap on, or a different movement. Is there something more?

Not really an upgrade, but I may get an extra set of hands, or even a new dial. I’d imagine it would look like an entirely different watch after the replacement. It’s basically a new watch. The thought of having a new watch with just a fraction of the price is pretty tempting.