I found most of these amusing and pretty clever too. I think they all follow the general idea of a palindrome, then if a real palindrome actually is specifically letters/numbers/symbols then that didn't spoil the amusement value for me. Palindromes aren't that easy to make after all. BTW, I perceived Kay as a name, so I didn't find it nonsensical. Good effort StrangerInAStrangeLa, should be more appreciated if you ask me.
So far I have not seen anything better than the following Consider it a translation into English of somethin Napoleon might have said. It is a sentence whch makes semantic sense. It is longer than many Posted here. It does not require movement of punctuation or break up of words.