mod dice {
    use std::collections::HashMap;
    pub struct Dice <'a> {
        face_pieces: HashMap<&'a str, &'a str>,

    }

    impl Dice <'_> {
        pub fn new() -> Dice <'static> {
            Dice {
                face_pieces: [
                    ("edge",   "# # # # # # #"),
                    ("blank",  "#           #"),
                    ("left",   "# O         #"),
                    ("right",  "#         O #"),
                    ("middle", "#     O     #"),
                    ("two",    "# O       O #"),
                    ("three",  "# O   O   O #")]
                    .iter().cloned().collect(),
            }
        }
    }
}

fn main() {
   let dice = dice::Dice::new();
}