If you're a thrifty spender, this Maison Margiela Pendant will fit the bill. It's a foolproof choice, while not very pricey. Another strong contender for your wardrobe is this Montblanc Pendant. While the price of this piece is rather reasonable, it will definitely attract a lot of attention. You may also want to look at this Kenzo Pendant. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for an item in the middle of the price range, look no further than this Maison Margiela Pendant. This item doesn't cost the earth, but absolutely indispensable in your wardrobe. It's also worth considering this Valentino Pendant. This product is ultra popular and, just as importantly, not too pricey.