Casio f91w mods for your friends

I have some friends who love watches. Haute horology is cool in its own right. I'm not here to dispute that. But, I don't have the coin to buy my friends a Patek, AP, or Rolex for their birthday or milestone event. I do have some time, a small screw driver, and the ability to follow basic directions. Made bespoke watches for a bachelorette trip recently. Sopranos character on the face and engraved case backs. While the Casio f91w is not the most stylish watch, intentionality is always chic