For the Jim Henson Productions: The Muppet Babies variants are None, but funny.
NIGHTMARE for the second logo, the lasers and Kermit the Frog's creepy-looking stare will scare you. I seen this logo loads of times but I never winded up with a nightmare about Kermit staring into my soul, - Black Silver reacting to the logo.
For Jim Henson Pictures:
None, but funny.
For The Jim Henson Company:
None for the MirrorMask variant, but the French man talking is so annoying. Not for people who speak French.
None for the Sid the Science Kid variant, but also funny.