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Great fun for a short time
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This is an amazing pen. It's fun and fascinating--for a short time. It dries up very quickly and then the fun is gone. I bought four of these pens and three of them dried up after only about four or five uses. I have extended the life some by adding water to the body of the pen. That has seemed to rejuvenate them.
Rating: 
(3
out of 5) @ 2008-07-30
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Good
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The products that I purchased were mostly good. One pen was dry. The kids loved the pens and had a great time being detectives and using the pens for clues.
Rating: 
(4
out of 5) @ 2008-05-19
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These pens were dried up and didn't work!
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These pens were dried up when I received them.....they may have been fun if they had worked. I did try dipping their pen tips in water (several times)to try and get them to work. However all I could get was a pale line of a single letter. Not worth the money it cost to have these pens shipped here.
Rating: 
(1
out of 5) @ 2008-03-11
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Fun yet simple
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My boys just didn't seem to latch on to this as much as I had hoped. The black light on it was fun--money testing and glow in dark stuff. Build quality on these were good for the price.
Rating:
(3
out of 5) @ 2008-01-13
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invisible pen
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My grandaughter loved the pens. She is age 12 and she and her friend can write secret notes no one else can decipher back and forth.
Rating: 
(5
out of 5) @ 2008-01-07
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