u/Academic-Field5862

So the title kind of says it but this trumpet is supposed to be silver and other than polishing it every week or two, anybody have any ideas on how to keep it that way? I had polished it before leaving on a two week trip. I came home to it looking like this, but this is hardly the first time it's turned golden after some time on the wall. I have 4 horns and this one doesn't get used as much as it used to.

edit: to add clarification

I'm planning a trip where I'll leave a horn for practice on future visits. It's a low cost horn that won't ever be on stage with me, but how would y'all feel about this? It's in the case it shipped to me from Germany in, then inside my checked bag. Non stop flight. Also, cat tax 'cause she knows she's coming with but doesn't understand this isn't her ride.

I figured since the housings are projectors, not reflectors I'd give it a whack. Wish I didn't have to go through the damn wheel well, but hey, cest la vie. I got these and after a 30ish minute drive I don't have any warning lights on the dash for out bulbs and they look SO MUCH BETTER. Not bad for $70 and less than an hour of work. Also put in a dash cam on the new ride so just did it all in one go.
https://www.lasfit.com/products/9005-hb3-led-headlight-high-beam-la-series