The present invention relates to a disposable shaker comprising a) a first body configured as a drinking glass, and comprising a first cavity, and a first rim; b) a second body comprising a second rim, and a second cavity configured with multiple compartments; wherein each compartment comprises a cocktail ingredient of a cocktail to be prepared; wherein the first body and the second body are releasably attached to one another such that the first and second rims are positioned close to each other; and c) a tear-off or peel-off sleeve covering at least the upper part of the first rim's face.