Local businesses that deliver

Visited bourmouth for first time about a week back and wanted to get the hosts a gift but i dont know any local businesses. We stayed with my sister in law and her flat mates. Havent met the flat mates (2 males) before but they were so nice. Was first trip that far with my toddler and they were really considerate, wouldn't accept cash for food and very patient with having a little one running about. So id really like to get them something, ideally something reasonably priced. We went to the food festival in Christchurch and i meant to get them somethings from one of the spreads stands but little one had enough of the sun so we left early. Thanks!