Vendor's rhymes with:
vendors, vendors', bender's, benders, blenders, contenders, defender's, defenders, enders, endres, fenders, genders, lender's, lenders, lenders', offenders, penders, pretenders, renders, senders, spenders, surrenders, suspenders, tenders, vendors, vendors', wenders
Vendor's sounds like:
vandercook, vanderkooi, vanderzee, vandross, vannatter's, vantrease, vantreese, vendors, vendors', venters, ventres, ventresca, ventress, venture's, ventures, ventures', vondracek, vondrak, vondrasek