Sillytea

xEarl Grey
xChai
Oolong
Anise Seed(Black Licorice)
xYellow Label Tea
Roibos Tea
Teabag

xCoffee
xSugar Water
xFaygo
xTab
DRUGS
Dozens of floating miniature books in brine
Pink Egg Yolks
A single sugar pill
Large amounts of NaCl

A red potion that changes the sex and gender of the drinker
A blue potion that causes the drinker to forget the last five minutes and gives an unexplainable urge to dance.
A green potion that sticks to the bottom of the glass and renders the cup immovable
A pink potion that causes the drinker to kiss the person sitting closet.(If tie, then the person closer to their left)
A yellow potion that acts as an instantaneous laxative
A grey potion that renders the user extremely magnetic
A clear potion that removes all potion effects of the drinkers choice.
A brown liquid that tastes like Trees
A strange brew that belches small amounts of smoke and flame and causes the drinker to freeze anything they touch
A pink potion that forces the drinker to speak in fish puns
A mirroring potion that makes the drinker believe they are the person to their left
A white potion that fills the drinker with a deep desire for hatesnogs
A red potion that fully restores hit points
A purple potion that fills you with rage (+4 strength, -2 dex)

A smaller sealed bottle containing a random potion described on the label. If the recipent of this beverage asks somebody else to drink it, they must comply.

xCat Urine
xBlood
xVodka
xBattery Acid
Random Alcoholic beverage
Black Liquid Sorrow
A Banana
A Freaking Weasel
A Shower of Gushers
A Shower of Grist
A Shower of Grist and Gushers
A Shower of Boonbucks
Rainbow Liquid, roll 1d12 for color (Hint: its troll blood)
Elf Tears
Your teapot becomes a small inanimate object, with a very stubborn personality