Happy Jackson ‘11 Today’ Card There have been stranger things than someone turning eleven so celebrate a birthday with this colourful card from Happy Jackson with a message on the front that reads: ‘ELEVEN TODAY! 11 HAPPY BIRTHDAY have a totally BRILLIANT one!’ This card is black inside, so you can write your own message as long or short as you like! Happy Jackson Cards Suitable for a range of occasions, Happy Jackson bring you a range of fun, colourful and cleverly worded cards sure to make you, and the recipient of the delightful card smile. The card comes blank inside – plenty of space to get your creative juices flowing and the vibrant yellow envelope means your card will stand out in the pile.