Sheldon likes the number 73 the best because in binary it's written the same way backwards and forwards. This clock doesn't go past 12, but it's a great way to start showing off that base 2 knowledge. MoreIt's easy to find one-of-a-kind designs and merchandise at CafePress.com.
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Unique Experience Gifts
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Hometown Jigsaw Puzzles
Your neighborhood in aerial view or map jigsaw glory! A great gift!