I am the reason for Tigger's new Catnip Habit. I found a cute little cat-mat made by the company that does the "Big Scary Kitties" dog toys. I thought it was cute, and it was at a close-out store for $2.00. Tigger is 13 1/2 years old, and he's never really had an affinity for catnip. I thought this might be a cute mat to put his Snugglesafe under during the winter. The label on the mat said it had catnip inside the mat.
When I put the mat out to see if Tig had any interest, I was amazed. He was definitely interested, and he could not remove his nose from the mat.
Then he started licking the mat, and his ears pointed straight back.
When his tail started to twitch, I took the mat away. 
Tigger did not move from this position for at least five minutes, and his pupils were freaking me out. Once he was out of his trance, he dozed off, oblivious to all the dogs playing and barking around him.
I can just see the public service announcement starring Tigger.
"This is your cat. This is your cat on catnip."