Love some help identifying these parts!
 

Thanks in advance for any help you can give me on ID of these parts. Members have been incredibly helpful on this forum.

4. Playmates Star Trek Borg
5. Playmates Star Trek Borg
6. GI JOE Overkill arm (1992)
9. He-Man Hydron arm
10. GI JOE Overkill chest gun (1992)
13. GI JOE Battle Gear Accessory Pack #2
18. Lego whip/vine

Thank you again Sean! You know toys!

#1 and #3
 

Hi,
Does the insignia on the front of the #1 black rubbery shoulder pads mean anything to you? Also, #3 is interesting because it is kind of like a gun in a holster and I have the exact same one in metallic looking gray plastic. You can pull the gun part out of the holder. Hope this rings a bell.

One more question
 

I have three gray weapons that are rubbery and somewhat bendable. Which company uses flexible plastic?

7. Robo-Cop arm from Robo-Cop and the Ultra Police Robo-Command by Kenner (I think)

Thanks, Sean! You are my go to guy. What do you think of that big red and black shoulder pad accessory in #1? The only figure I have that big is a Gundam but didn’t fit on it. I don’t mean to be a pest. I actually spend many hours trying to ID many toy parts. It’s like a treasure hunt.

3. Playmates WILDCATS Daemonite