On my first day of Christmas the Transformers gave me
Unicron up a tree

On my second day of Christmas the Transformers gave me
Two Different bases and Unicron up a tree

On my third day of Christmas the Transformers gave me
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my fourth day of Christmas the Transformers gave me
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my fifth day of Christmas the Transformers gave me
Five Friendly children,
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my sixth day of Christmas the Transformers gave me
Six Starting Mini-cons,
Five Friendly children,
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my seventh day of Christmas the Transformers gave me
Seven Main Decepticons,
Six Starting Mini-cons,
Five Friendly children,
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my eighth day of Christmas the Transformers gave me
Eight Main Autobots,
Seven Main Decepticons,
Six Starting Mini-cons,
Five Friendly children,
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my ninth day of Christmas the Transformers gave me
Nine Powerful Mini-cons,
Eight Main Autobots,
Seven Main Decepticons,
Six Starting Mini-cons,
Five Friendly children,
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my tenth day of Christmas the Transformers gave me
Ten Mini-con Groups,
Nine Powerful Mini-cons,
Eight Main Autobots,
Seven Main Decepticons,
Six Starting Mini-cons,
Five Friendly children,
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my eleventh day of Christmas the Transformers gave me
Eleven G1 Transformer Names, (Autobots and Decepticons)
Ten Mini-con Groups,
Nine Powerful Mini-cons,
Eight Main Autobots,
Seven Main Decepticons,
Six Starting Mini-cons,
Five Friendly children,
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree

On my twelveth day of Christmas the Transformers gave me
Twelve Different Warp Gates,
Eleven G1 Transformer Names, (Autobots and Decepticons)
Ten Mini-con Groups,
Nine Powerful Mini-cons,
Eight Main Autobots,
Seven Main Decepticons,
Six Starting Mini-cons,
Five Friendly children,
Four Beginning Decepticons,
Three Starting Autobots,
Two Different bases and Unicron up a tree (toy that is)