Summary of all my 16 pulls
Day 1: Silvers
Day 2: 1 Gold (Echinacea)
Day 3: Silvers
Day 4: 2 Golds (Madonna & Blushing Bride Custumed)
Day 5: 2 Golds (Holly Swimsuit & Easter Cactus Swimsuit)
Day 6: 1 Gold (Pussy Ears *dupe)
Day 7: Silvers
Day 8: 1 Gold (Iberis Xmas)
Day 9: Silvers
Day 10: 2 Golds (Nandina & Lemon)
Day 11: Silvers
Day 12: 1 Gold (Anemone Idol)
Day 13: 1 Gold (Nigella)
Day 14: 1 Gold (Rabbitear Iris)
Day 15: Silvers
Day 16: Silvers
In total: 11 Golds & 0 Rainbows

Some stats:
On average, a person has a 88% chance of getting at least 1 Rainbow from all 16 days.
On average, a person should get 10-11 Golds in total from all 16 days.