I don't know about you but this moodlets have been haunting me since i started playing the Sims 4, and finally, i removed them!

A mod that allows you to make plasma packs from cows, llamas and chickens. To do so, click on the animal and under the "Actions/Trade for" you will find "create plasma pack". The packs will be instantly created into your Sim's Inventory, no need to wait for it in the mail!