I trade for things like cleaning kits, turn screws (gunsmithing kits), bi-pods, CO2 Dischargers, gunbags, powerbelt bullets, lightfield slugs, Lyman & LEE Bullet molds.
Thanks Kimsonvu, but horns are important items in African culture, therefore you find they are a tough item to find a reliable source that will constantly be able to supply you with horns.