In this challenge, I used a Smiggle Spy Pen to draw a full doodle using invisible ink that only appears under UV light! 🔦🖊️ Drawing without seeing the full lines in real time was tricky—but the ...

Watch this quick Clip of The 'Crunch' the Bird Doodle created by Mr Doodle! Let us know what you guys think of this Doodle! ---------------------------------------------------------------- *Join the ...