I've used Lucky Limeade, Pool Party and Island Indigo for my colour combo using three of the gorgeous In Colours. The letters have been die cut from the Big Shot Simple Letters set. The square of DSP were simply punched using the larger square punch (you know me I like anything resembling a collage of squares!). The birthday sentiment is from the hostess set Happiest Birthday Wishes, coloured with Markers before stamping:
I even decorated the inside to match:
I think my Dad has now recovered from Zac singing a somewhat out of tune yet entertaining version of 'Happy Birthday' down the phone!