Regal Procession

You toss a bit of horsehair into the air, and as it drifts toward the ground, an array of finely adorned mounts appears.

(Spell Compendium, p. 172)  
Originally posted on D&D tools

Conjuration (Summoning)

Level: Paladin 3, Sorcerer, Wizard 3,
Components: V, S, M,
Casting Time: 1 round
Range: Close (25 ft. + 5 ft./2 levels)
Effect: One mount/level
Duration: 2 hours/level (D)
Saving Throw: None
Spell Resistance: No

This spell functions like mount, except you can summon several mounts. Each comes with a bit and bridle, riding saddle, saddle blanket, ribbons, adornments, and a banner. You select the colors of the horses and the livery, either or both of which can include a heraldic or personal symbol.