Clever Science-Based Ad Billboards
These are awesome! (I LOLed at the hair billboard, and the gold billboard is just wow!)

5-Minute Management Course
Hilarious and yet profound in ways…but mostly funny. xD (Some NSFW language)

Cave Diving Photo
What beautiful water, and what amazing natural sculptures!

This Titanium Ring Conceals a Saw and Handcuff Opener
A ring worthy of Bond…James Bond.