Jewel Skull Necklace USB Drive
Other than the apple necklace USB flash drive, here is the jewel skull necklace USB drive. It has 2GB capacity and measures just 55x25x16mm at 30g. The drive costs $22.
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Jewel Bug Necklace USB Flash Drive
Here is a jewel bug USB flash drive that comes with decorative crystals. It comes with nechlach so you can wear around your neck. The drive is available in 8GB and costs $33.