Please help ID vintage Toy Accessories!
 

Hi guys,
Got a few more parts that need help to identify:

Black Backpack with Gold Grappling Hook that clips to the waist of a 3-3/4" action figure. Exact same style and build as the green 1991 Mattel Air Attack Peter Pan Backpack I've shown for reference (third photo) but mine is a different colour

Red Clip approx. 1" in diam. Got it with a bunch of Dino-Riders parts so I have a feeling this might be part of that toy line.

Blue rubbery seat or saddle for 3-3/4" action figure? Has a peg on the bottom of the seat that fits into some type of vehicle or animal.

Thanks for the help!
Jeff

The first pic is from the Batman Kenner Dark Knight Collection: Wall Scaler Batman.

Nevermind, didnt read the text about the hook backpack before posting.

The red clip is part of the jointed crane of the TMNT Sewer Party Tube.