What's Your Mood Necklace on Neon Rainbow Cord Necklace Retired What's Your Mood Necklace on Neon Rainbow Cord Necklace. Your own energy will cause the mood pendant to change colors! Pendants available in Cross, Peace, Frog, Heart & Butterfly. Cords are gradient color changing Neon Rainbow colors. Price is per necklace. Assorted styles. Random styles shipped.