Seasonal
In late November 2010, the first holiday-themed Sing-a-ma-jig was introduced for Christmas and sold at Toys "R" Us stores. "Santa" is a dark green doll with a white beard, and a red-and-white Santa Claus jacket and cap. He sings "Jingle Bells".
The second holiday-themed doll was released in February 2011 in time for Valentine's Day. This doll is red with a pink shirt featuring red hearts. Its ears are unique in that they are also shaped like hearts, breaking away from the bear, dog, elephant and rabbit ears used up until now. This doll sings "Let Me Call You Sweetheart" in her alto voice.
In March 2011, the third holiday-themed doll was released for Easter. This Sing-a-ma-jig is a white Easter rabbit with more detailed bunny ears. It sings "Here Comes Peter Cottontail", and rather than saying "Goodbye" or "See you later", signs off by saying, "Happy Easter!" His shirt is covered in a colorful Easter Egg pattern. He has a baritone vocal range.
A 4th of July themed doll was released in time for the holiday in 2011. The doll is red, white and blue, and sings "The Star-Spangled Banner" (the American national anthem). Instead of "Hello!" or "How do you do?", he signs on by saying "Happy Independence Day!" He has a tenor vocal range.
Four Halloween themed dolls were released in October 2011. These Sing-a-ma-jigs included a pumpkin, a ghost, a skeleton, and a witch. All of them sing Trick or Treat and the ghost, skeleton and witch were Target exclusives, whereas the pumpkin was not exclusive. For the way they sign off, the pumpkin and ghost sign off by saying "Happy Halloween!", the skeleton says "Scare You Later' and the Witch says "See you later". Also, for the way they sign on, the pumpkin and ghost say "Trick or Treat" and the skeleton and witch say "Happy Halloween" in their tenor, bass and soprano voices.
In November 2011, two new Christmas themed Sing-a-ma-jigs were released. They included a snowman and a reindeer. The snowman sings Jingle Bells and the reindeer sings "We Wish You a Merry Christmas" in their alto voices.