I remember years ago when I had my first car a silver Peugeot 309, I was dead pleased with it and spray painted the black bumpers, wing mirrors and door handles silver to match the rest of the car I thought to myself what else would make this car even more amazing? So I purchased some chrome valve caps. They lasted about a month on there when some pikey kid must've stolen them for his bmx, as only 2 were missing. I ended up just putting some plain boring black ones on..... and my Pug 309 AKA the Silver Bullet was never the same again. So I'm sorry to hear yours have gone missing too, I feel your pain