Penny uses the Tingler™ to massage Koko”s head. The tingling sensation is supposed to relax the user but sometimes it just tickles.
The Tingler™
Created On:
Posted On:
Photographer: Ron Cohn
![](https://www.koko.org/wp-content/uploads/2010/03/020723_PKTingler.jpg)
Created On:
Posted On:
Photographer: Ron Cohn
Penny uses the Tingler™ to massage Koko”s head. The tingling sensation is supposed to relax the user but sometimes it just tickles.
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