I loved MAD magazine and read it between 7th and 10th grades in the mid to late '60's. I was an aspiring artist and drew caricatures of classmates and family, so I especially loved the parodies of TV shows and movies they had, and my favorite caricature artist at MAD magazine was Mort Drucker http://www.adriansinnott.com/mortdrucker.html
I still laugh when I think of the ways they renamed movies for their spoofs: "Balmy and Clod" (Bonnie and Clyde), "Rosemia's Boo-Boo" (Rosemary's Baby), "Valley of the Dollars" (Valley of the Dolls") see http://www.officialpattyduke.com/madmag.htm
and "Blue-Eyed Kook" (Cool-Hand Luke), all parodies I remember and found listed here: http://en.wikipedia.org/wiki/List_of_Mad%27s_movie_spoofs
I adored Don Martin, too, and enjoyed all the sound effect words he used and his fantastic drawings. Here's a list of all the words he used in his drawings: http://www.collectmad.com/madcoversite/index-dmd-alphabetical.html
My parents own a cottage in Ontario, Canada and we still have two old MAD magazine Don Martin comics plastered on a wall: One is of a character eating spaghetti and one of a character trimming nose hairs (SPROING was used as a sound effect there, I remember
I also loved "Horrifying Cliches" and thought Paul Coker, Jr's artwork was terrific. I also used to buy a few of MAD's paperback collections of cartoons and parodies.
As I was Google-searching, I came across this link for "Mad Mumblings" for MAD Magazine fans that some might be interested in: http://www.madmumblings.com/forum/index.php
I tried Cracked magazine a few times, but never felt like it measured up and thought it was a very poor imitation.
There was a bookstore/newsstand in our town where I used to buy my MAD magazines. I'd mosey in after school to buy a MAD, along with some candy from the counter and, until it was sold a while ago and turned into a women's clothing boutique, over the years, I loved going into that store and breathing in the musty smell of newspapers, magazines, and paperbacks. I was always immediately transported back to junior high school and simpler times whenever I got a deep whiff!