LISSE/SCHIEDAM -- The international flower exhibition Keukenhof will open for its sixtieth edition on March 19. One of the exhibition’s successful events will also have something to celebrate during the park’s grand opening. In 2009, Jackie Habets from the What’s Up bureau (Schiedam/Antwerp) will be organising the fifth International Hat Show, which is traditionally held on Easter Monday (April 13).International professional hat designers have been invited to find inspiration in