Fill in the (Bottle Cap) Blank

[Imagine]

Hi to all.
I'm new here (i registered yesterday), not so much proffesional experience, but i have wanted to participate in this Challenge...
And here i go with my first version Beer Cap , inspired on the Beer-candy mix idea that Homer Simpson Wanted to buy at the Kwik-e-markt in one episode.

From Spain, Héctor Montoya (imagine)