Write a warm news report highlighting the Budget-Friendly Experiences: Top Groupon Finds Under $50 in Del Mar Heights. Focus on the featured deals: personalized glass tumblers from Green and Dirt, floral design online course from Training Express, a drone videography course from SkillSuccess, and a round of golf at Dos Osos Golf Club, all under $50. Use the provided details to describe each offer, prices, and any notable consumer notes or promotions.