Since sorting all of the tiny G1 LPS accessories can be rather nightmarish, I have been working on a variety of accessory ID references. At the moment, there are references for: food & water; brushes, combs, & hair decorations; saddles, harnesses, & horse blankets; and toys. A few more accessory references will be added over the next few months.
Hopefully you'll find these to be helpful!
http://vintagelpscollector.com/idref_accessories.htm