If you're looking for a Giorgio Armani Acqua di Gio fragrance, this might suit you. It could be great if you're just looking for a small bottle, given its 40 ml volume.
From Cosmetify
Giorgio Armani Acqua Di Gio Eau De Parfum Refillable 40ml
Perfume Oasis
Armani Acqua di Gio EDP for Men