Red Champ Saddle with Dots
Hartland made a Champ Cowboy with a red and white shirt and this is mostl likely his main saddle when paired with a horse with red tack. The early Black Beauties also used this saddle until roughly when they switched over to the Semi-Rearing horse mold.

Red and White Champ Cowboy #801
Black Beauty

Red Champ Saddle with Dashes
The Red and White Cowgirl would use this saddle when on a Champ horse with red tack.

Red and White Cowgirl #802

Red Western Saddle with Cinch Holes
The red western saddles are actually fairly hard to find. This one is created from the same mold as the Annie Oakley saddle shown above. It was used with the Semi-Rearing and Rearing versions of Black Beauty.

Black Beauty

Red Western Saddle with Rifle Hole
I believe this saddle is even more rare than the red western saddle above. It is molded just like some of the Black style western saddles with rifle holes, but painted red. This one was actually marbelized red, blac, and white plastic.

Black Beauty

Red Indian Blanket
Two Indian figures shared this blanket. Actually three if you count the two Thunderbird variations! They range a little in color but are generally very bright red.

Brave Eagle : #812
Chief Thunderbird: #813
Warpaint Chief Thunderbird: #813

Red Indian Blanket—Stevens
In 1994 Stevens Plastics recast the Warpaint Thunderbird set. The mold seem to be a little different than the one above, but hard to say. The paint is much duller than the old ones.

In 1988 Stevens also produced a Styrene version of Chief Thunderbird. I do not own one of the pieces but I would have to think it looks pretty much just like this one!
Stevens Plastics Chief Thunderbird:

Red & Black Jockey Saddle and Blanket
This set showed up in the 1956 brochure for one year and then vanished. The loose saddles are almost impossible to find loose and seem to be missing from most of the sets that turn up. The stirrups are actually molded alongside the legs of the Jockey figure.

The Jockey/Turf King #811