Another good book for Christmas decorations is The Magic of Origami by Alice Gray and Kunihiko Kasahara. This book is is a classic and a treasure to have! All the models are easy to make and there is a large section on Christmas ornaments.

Diagrams

• 3-in-1 Rabbit Ear Ornament: (AF Barbour)
  pg 1, pg 2
  
  
• Blossom ornament: (AF Barbour)
  pg 1, pg 2
  
  
• Christmas Decoration (D Petty)
  
  
  
  
• Curved Diamond Ornament (AF Barbour)
  pg 1 , pg 2 , with fish base
  
  
  
• Double Leaf Ornament (AF Barbour)
  
  
  
  
• Fluted Diamond (M Kahn)
  
  
  
  
• Four Birds Ornaments (AF Barbour)
  pg 1 , with frog base
  
  
  
  
• Gyroscope (L Simon)
  
  
  
  
• Hanging Ornament (T Fuse)
  
  
  
  
• Skeletal Octahedron (R Neale)
  
  
  
  
• Sprial Seedpod Ornament (AF Barbour)
  pg 1 , with preliminary base
  
  
  
• Strand of Tears Ornament (AF Barbour)
  pg 1, pg 2
  
  
  
• Teardrop Ornament (AF Barbour)
  
  
  
• Tetrahedral Frame (Ow & Hull)
  
  
  
  
• Tier of Tears ornament (AF Barbour)
  
  
  
• Toshie's Jewel (uses 3 Sonobe units)
  
  
  
  
• Tree Ornament 3 (AF Barbour)
  
  
  
  
• Tree Ornament 5 (AF Barbour)
  
  
  
  
• Tree Ornament/Jewelry (K-D Ennen)
  
  
  
  
• Triple Leaf Ornament (AF Barbour)
  pg 1, pg 2
  
  
  
• Twelve Vaned Ornament (AF Barbour)
  pg 1 , with pinwheel base
  
  
  
• Star Twist Ornament (AF Barbour)
  pg 1, pg 2 , with bird base
  
  
  
• Winged Ornament (AF Barbour)
  
  
  
  
• X-mas Ball (J Skillman)