A palindrome for a prank would be a gag because it is spelled the same forwards or backwards.
"eye" is a 3 letter palindrome for the word energy.
gag
eve
Gag and Deed
Eve is a three letter palindrome for the evening or day before.
There is no one-word 8-letter palindrome in English, apparently!
The smallest 3-digit palindrome is 101.
Deed
redivider
kayak
deed, sees