Thats a sweet necklace! Though, I reakon if you weren't a transformer fan, you'd think it was some sort of bling bling
I probably don't show I'm a transformer fan nearly enough. But a good mate of mine recently got the autobot symbol stuck to the bonnet of his car. It was a really cheap job as in he just used white paper.
I would do it on my car properly, but I fear that if I need to sell my car one day, it would only appeal to other transformer fans.