Prizes Needed any help appreciated

Our High school has started a photographic after school club and the kids are enjoying taking photos, going out and meeting people. Most of them are using Phones to take pics and some are REALLY good. Their teacher is taking them to the botanical gardens for a photo competition and some prizes would be great to give at the end of the photo shoot to the best photo of the day and runners up. If you know of anyone who could assist we would appreciate any help.