Lovely freestanding Igloo Rainbow Stackers.
Two Options, one is a '3D' Version, where you get a standard stacker, and then two smaller pieces to stand infront to form a doorway 

The other is a side view version of an igloo 
 
Please see pics for info 
 
The side view Igloo is 25cm wide and 12cm tall and has 4 parts
The 3D one is 22cm x 15cm and has 6 parts