Vehicle cosmetics and parts are earned by hijacking other vehicles and doing Crew Challenges. It’s not an item like other cosmetics that’s inside your inventory, it just unlocks automatically after you drive back a hijacked vehicle to a vehicle spawning point. Actually, the Cyclone Bubblegum skin is earned for finishing the Dynasty Dash side mission on Eden-6 before the timer hits 9 minutes. I know you’re looking for a trade, but this might help until you have sent it to you (I’m on PC, otherwise I would send some stuff to you) I got the Eye Pad once from Katagawa’s Ball, and once again in Skywell 27 from a chest near the place where you have to hack the elevator for Rhys (I’ll post a picture later of the exact location of the chest). Neon Peach is a drop from Debt Collector in the Moxxi’s DLC, if you do the Sisterly Love side quest, he will spawn at the end of the quest and after the quest, but not until that. I never saw Neon Peach dropped from other places. Wotan’s Head is Takedown only drop, you won’t find it any other places. For the Psychodelic weapon skin I recommend Graveward, he dropped me the most of those. For other decorations I think you have a high chance on Graveward again, but most of them I got from world drops.