Here's what I used for my creation:
H: Happy Birthday
Y: Yellow
C: Circles
C: Clean-and-Simple
T: Twine
Stamps: Perfectly Penned, Circle Circus
Ink: So Saffron, Not Quite Navy, Pool Party
Paper: Not Quite Navy, Pool Party, Whisper White
Accessories: Pool Party Baker's Twine, So Saffron button (retired)