This was one of the first projects we did that required the use of complex stickers. We actually hand-cut each sticker! Now we have them professionally laser-printed.
Although we knew that a lot of the bricks were going to be covered with stickers, we were not happy to simply make a white box. Instead, we used bricks as much as possible and then color-matched and sized the stickers so that they blended into the brick work as close as possible. This allowed both the bricks and stickers to shine and contribute to a more thoughtful design.