See the list below. Since we only have 25 suggestions, we'll have 6 "wild card" entries. to round out to 31 days.
For the wild card days, you can repeat from the list or add something new.

1.Bright 2.Plentiful 3.Wrapped 4.Chain 5.Beloved 6.Special 7.Red 8.Gold 9.Chilled 10.Edible
11.Hot 12.Sparkle 13.Family 14.Frolics 15.Weather 16.Travel 17.Peace/peaceful 18.Home
19.Away 20.Ice/Frosty 21.Fog/Smoke 22.Animal 23.Angel 24.Nativity scene 25.Shopping
26.Holiday food 27.Traditions 28.Dance 29.Ornaments/Decorations 30.Sweets 31.Artist 32.Green