The Horse Trust is holding a rug and tack sale on Saturday 11 September at its Buckinghamshire sanctuary to fund the care of the horses living there, including those rescued from Spindles Farm.
The charity regularly receives donations of rugs and tack from supporters, and its rug and tack store is now overflowing, so it has decided to sell the surplus.
A similar sale raised £3,000 last year — the equivalent of one horse’s annual keep.
Spokesman for the charity Susan Lewis said: “This is a great opportunity for horse owners to pick up an affordable high-quality rug or tack, at the same time as supporting the Spindles Farm horses.
“It would be great if we could beat last year’s amount to enable us to continue taking in welfare cases.”
The Horse Trust is currently caring for 10 horses, ponies and donkeys that were rescued from James Gray’s Spindles Farm in January 2008.
The rug and tack sale will take place at the Home of Rest for Horses, Slad Lane, Speen, Princes Risborough, HP27 0PP between 12pm and 4pm on 11 September.