LED light strip /Dummy

I want to make a LED "Block-ish" shape to make that I can STICK to my wall. I am currently working with pixels as an art form. (I know NOTHING about robots but i want to learn) Is it possible to sodder LED strip lights to make a "grid/costom shape" And have it run WLED? I have seen BLOCKS made and there are "Bendable LED Car strip lights. I just want to be able to costomise the shape for my wall.