1,218,974 views 193 on YTPak
5,405 415

Published on 04 Mar 2015 | over 2 years ago

How to make your own invisible ink spy pen.
Write secret messages.
This is the UV ink I used: amzn.to/2e8FvNi (affiliate)
UV flashlight: amzn.to/2ecw2ox (affiliate)

Loading related videos...