That was easy ;-).
The Carlo Ambigram shown here is a nice short symmetric ambigram that is an engineered optical illusion at work.
As you can see from the preview, you can read this as 'Carlo' when the design is upright and also as 'Carlo' when the design is inverted.
Simply mouse over the design to see it rotate.
Would you like to see other options? See an entire gallery of choices by clicking the Create New Design button.
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