There are flip-flops that when you step on the sand leave an imprint of your sorority name. , but I hvae to agree...why would you want to step on your letters?
I don't know how to post pictures, but here is alink to what someone was referring to...
Imprint Flip-Flops
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ZTA
"Even in our sleep, pain which cannot forget, falls drop by drop upon our hearts. Until against our will comes the wisdom of God."