My favorites are:

SRT61, or RT57

SRT372, or RT348

HEMI61, or HEMI57

MYHEMI

DODGE61, DODGE57

MOPAR61, or MOPAR57

(Note: In NJ you can personalize your plate for a one-time fee of $50, in addition to the regular registration fee. A personalized plate must have at least three letters and a maximum of seven characters in combination of letters and numbers).