If you’re a geek who is proud of your heritage, then getting these unique keychains would be right up your alley. Made from pewter, these keychains come in various molecular structures such as serotonin, caffeine, and testosterone, courtesy of online retailer Fractalspin. The unique design not only turns heads, it makes it much easier to identify them when you’re in a rush, lowering the chances of you losing them in the process. Fancy picking one up for yourself today? I believe science students at schools will definitely find this a fun present to receive on their respective birthdays.

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