Yes! 
#21
Frying pan
Coins
Children’s book
This isn’t Throw Momma from the Train (1987) - IMDb ? We need more clues if it isn’t.
You got it!
I really thought these two were easier than the one Munch got. One last chance–I’ll post answers later today.
#20
Pen
Joint
Pie
Chess pawn
Sausage
Paddle-ball
Shovel
#22
Garter belt
Ironing board
Billiard ball
Chicken bones
Glass of Scotch
Guitar
Hint: Both comedies-- #20 is from the '70s and just celebrated an anniversary, #22 is from the '80s, and its top 3 stars have all been Oscar-nominated, but not for this film.
I know it’s been a few days but :
#28
diamonds
dentist’s drill
#20
Pen
Joint
Pie
Chess pawn
Sausage
Paddle-ball
Shovel
Yes. Good job!
Props #34:
stroller
gun
doll
flamethrower
Additional clues:
#31
flags
government seal
newspaper
map on an easel
#32
snake
cellphone
handkerchief
hubcap
#33
felt-tip pen
sandwich
car battery
switchblade
#35
A volleyball
#36
A refrigerator
Several boxes of running shoes
Porsche 911
Thought I really should guess one before suggesting my own, but I came up stumped. So, here goes;
#37
Cigarette Lighter
Handcuffs
Broken headlight
Yessir!
And this one:
#22
Garter belt
Ironing board
Billiard ball
Chicken bones
Glass of Scotch
Guitar
Is Bull Durham.
Sternvogel is correct on #35- well done.
I’m not confident on either of these guesses but what the hell:
#37
*Cigarette Lighter
Handcuffs
Broken headlight *
This?
Props #34:
*stroller
gun
doll
flamethrower *
This?
Sorry, no.
I’ll add in:
a baby
knitting needles
a knife
No, so I’ll add another;
#37
Cigarette Lighter
Handcuffs
Broken headlight
Shop dummy
It was the flamethrower that threw me. I didn’t remember one being in the movie (it’s been a while). After these though I googled for the flamethrower, and, sure enough, there was one.
MORTY!!! 
We have a winner!!
Meeko #1:
Sunglasses,
Pack of cigarettes,
Bus pass,
Diamond ring,
Paperclip,
Fortune cookie fortune,
Janitor’s key,
Lighter,
Hairspray,
Matchbook,
BMW key,
Looking glass,
Stamp,
Ball bearings,
Allen wrench,
Half dollar,
Crossword puzzle,
Bullet,
Watch.
If you know where I am going with this list, I will admit to editing it. The edited item(s) would give away the answer, IMHO.
Also, if you can’t guess the movie from that list, for THAT movie, then you really shouldn’t be guessing at it.
“A Jose Consenco Bat?!”
Turtle wax
A confiscated colored pencil sketch.
Here the answers to my as-yet-unsolved ones:
#31 - The Missiles of October
#32 - The Darjeeling Limited
#33 - Slumdog Millionaire