I don't know if you want serious or not.... these are just some ideas for the letters

T-thankful, turkeys
H - hugs, helpfullness
A -appreciation, apples
N - noise
K - kids
S - smiles
G - grace, goodness
I - Individuality
V - views at night
I - ingesting pie, ice cream
N - naps, nighttime
G - gratitude, gardens, generations