For many frequent flyers, racking up airline miles isn’t enough – they need something tangible to show off their status. ADVERTISEMENT ADVERTISEMENT Enter: The airline collectible. From amenity kits to trading cards, there are plenty of ways to show your love of the aviation industry. Here are some of our favourites. KLM’s Delft Blue miniature houses KLM releases new Delft Blue miniature houses on its founding anniversary every year KLM Having first been introduced in the 1950s, KLM’s Delft