Wi-Fi Detector Shirt
Aha! ThinkGeek is selling the Wi-Fi detector shirt. It is a black 100% Cotton T-Shirt that detects and displays the current wi-fi signal strength in glowing bars, showing the signal strength for 802.11b or 802.11g. You will need to follow the instruction for washing if not you are going to spoil the shirt. The Wi-Fi detector shirt is available for $30. Watch the demonstration after the jump.
via Techeblog
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