(1) The design is aimed at capturing the climax of the football match, the split second when the fans and football players alike see the ball shaking the back of the net. It's a reminder of all the moments of joy ever lived, and a promise that new unforgettable images are soon to drawn on the pitch.
(2) The emoji-set can be an interractive, playful alternative. Each emoji shows the emotions the ball goes through when it's put in the net by a certain T/P (team / player). When a productive T/P scores a goal, for the ball that's business as usual: the emoji could be a bored emoji, as if it says "Not Again!" (flattering to the T/P). When a T/P who rarely scores a goal happens to make it, then the ball goes nuts hardly believing it actually got in the net for the first time in ages (funny irony to a T/P). A broader funny set of emojis could be developed, and the fans could express how they feel about a team / player through them: either by voting, or simply by accessing a page and getting a link to share a particular T/P name associated to a certain emoji (reaction of the fotball) : "When Germany scores a goal, the football be like:" ("X be like" is a popular Internet meme, but the text can always be something else similar).