Image with fixed tag

Hi guys, here is the problem… i have a stl image and i wat to create a tag with a name inside a square, my problem is… i want to create a 2d square in a 3d platform, so… when i rotate the square need to stay in the screen… the square can move but cant rotate… i will put 2 image, the first one is how it is now a days… and the second one … is how i want it to be… thank u very much…