Blu is a small character I designed back in 2010. He was made as a base model for a Blender 3D course.BTW: Blu features on the official Blender for 3D Printing dvd I released with the Blender foundation.I've been using the model for lots of different projects since, and as a starting point for a multitude of other characters (Dorus the dragon for instance).The really big version was printed at the http://www.protospace.nl fablab in Utrecht (Netherlands) on a really tall Ultimaker. Thanks for letting me use it! And Harma for the help printing!