Bridget Nilson and Mary Jo Pehl's take on this classic would be a dream come true.

Whats not to riff, the dated views, the iconic character actors, the sensible fashion... If it gets picked, please do the version with the six-minute fashion parade in full technicolor.

It's a beloved film that could handle a good riffing

https://en.wikipedia.org/wiki/The_Women_(1939_film)

Fascinating yet government-sponsored short about early atomic testing in Nevada and its effects on the citizens of St. George, Utah.

Link to short:

https://www.youtube.com/watch?v=-53275o9IFA&t=497s

Jonny is a good-hearted and bumbling guy with a streak of bad luck, until he meets a Sea Captain. He spends most of his time watching fiasco after fiasco unfurl, with him as the catalyst.

terrible special effects , all cast in drag ,iconic transvestite/trans film starring Miss Doris Fish ( also head writer ) perfect for a mike,kevin,bill/mary jo ,bridgette gang riff , i will volunteer to guest on it,lol.keep up the great work

https://www.imdb.com/title/tt0103192/?ref_=ext_shr_lnk

This one's pretty out there. The terrible english voiceover is hilarious.

It has wacky antics involving air boats, airplanes, spit wad shooting natives that communicate using drums, tons of stock footage of wild animals. A jungle girl, a star crystal, scantily clad priestesses, telepathic messages, This movie has it all!

Mexican actors pretending to be asians praying to their oracle C3PO.

Did I mention lucadors? Yeah, theres lots of those too - most notably a very polite and courteous El Santo and his trusty sidekick CLIFF!

http://www.wam.umd.edu/~dwilt/sansyn5.htm

Ocean's Thirteen

This is the sequel to the equally goofy and awful Wild, Wild Planet.
It's a dubbed Italian film from 1966 that has an incomprehensible script, idiotic dialog, terrible special effects, random pointless snap-zooms, terrible acting, Franco Nero!, crazy 60s color schemes, and distractingly wacky background dancers!

The Resident Evil series.
I'm honestly surprised they haven't done any, or at least the first one.
Like them or hate them they are some serious camp/schlock and prime for the riffening

Film from 1966, similar to Hillbillys in a Haunted House, starring Waylon Jennings, Mary Frann, Henny Youngman, Loretta Lynn and a host of other country stars, including one whose gimmick involves flapping his tongue in a manner that will horrify you, all while playing a guitar solo that sounds like a late night cat fight.

I was a PA on this one. Ron Perlman (slumming it), Frank Grillo, and a DP that never left crafty. Filmed in Alabama, set in Arizona. It's as painful to watch as it was to work on.

John Schneider (Bo Duke) made a horror movie. He really shouldn't have.

Sequel to "The Fly", unlike the 1st this was in black and white. Stars Vincent Price again. It is from 1959.
https://en.m.wikipedia.org/wiki/Return_of_the_Fly

I'll leave it to the professionals. I'm not that creative. Saw the movie on a satellite channel many years ago and immediately thought "This needs to be MSTied". Wasn't aware of "Rifftrax" at the time. I thought it took itself way too seriously, especially for a movie about a human sized, seemingly all knowing, mostly invisible, MOTH that gets into people's minds, makes them do stupid stuff, and possibly predicts disasters. What would cousin "Mothra" say?

This is 70 minutes, but feels like 3 days. "Stars" former sane actor, Michael Moriarity, as "Hitler". It's an abomination of the highest order.

From MGM, a great short about how a nickel pays for a stamp so an immigrant can send letters back home. Features little cameos from Ricardo Montalban and Leslie Caron speaking in their native tongues.

The audio should open up like the looney tunes cartoons
With the main theme

https://youtu.be/r_suh13HeiI
A 1979 short film by Cornet! This popped up earlier and I had to see if they have done it yet, and they have yet to! It is perfect for them!

Jim Kelly (Enter the Dragon, Black Samurai) in a 1978 movie about a freeze bomb that instantly freezes people to death. Tons of martial arts hilarity. The antagonist, The Pig, has pet turtles. He even has a painting of himself with his turtle. Hot helicopter on gondola action. Protection by Spranky occasionally required.