Muppet Vision Key (pic inside)
Here's a pic of the key. You must be in the far right turnstile, and IMMEDIATELY as you are going through it, there is what looks like a 'ticketbox' to the right, the sign is there clear as day, and then you flip the welcome mat.
Now, you will need to step aside, otherwise you will hold up the line. I had two CM's watching me take this pic, since they were escorting people into the attraction LOL I didn't really hold anything up, and I'm sure the CM's knew what I was doing, but I didn't want to be there all day ;) so I only got one pic.
This is a pic of the "2D Fruities" (tooty fruities) mentioned in the other thread. I also got a pic of "a net full of jello", but someone already posted a pic of that, so...