Tasha's Bountiful Cauldron

You conjure an ornately decorated cauldron filled with bubbling liquid. The cauldron appears in an unoccupied space on the ground within 5 feet of you and lasts for the duration. The cauldron can't be moved, and disappears when the spell ends, along with the bubbling liquid inside of it.

The liquid in the cauldron duplicates the properties of a Common or an Uncommon potion of your choice (such as potion of healing). As a Bonus Action, you or an ally can reach into the cauldron and withdraw one potion of that kind. The potion is contained in a vial that disappears when the potion is consumed. The cauldron can produce a number of these potions equal to your spellcasting ability modifier + your proficiency bonus (minimum 1).

When the last of these potions is withdrawn from the cauldron, the cauldron disappears, and the spell ends.
Potions obtained from the cauldron that aren't consumed disappear when you cast the spell again.

This variation of the spell is more plentiful, but also has more chaotic risk than the base spell. When a character drinks a potion from the cauldron, roll 1d6 and apply the corresponding additional effects of the potion:

1. The potion sours your tongue immediately, and burns like reflux going down. You have disadvantage on your next ability check.
2. The potion becomes viscous, like cold syrup, it sits heavy on your stomach momentarily. Your movement speed is reduced by 10ft until the start of your next turn (or for 6 seconds).
3. The potion became extremely fizzy, like soda, causing you to belch loudly. Hope you weren't trying to be stealthy. 
4. The potion becomes light and airy, like inhaling mist rather than drinking a liquid. Your movement speed increases by 10ft until the end of your next turn. 
5. The potion seems to double in volume as you drink it. If the potion has a healing or damage dealing effect (like a potion of fire breathing), double the total rolled for the effect.
6. The potion shimmers like lustrous liquid gold as you drink it. You gain the effects of the Haste spell until the end of your next turn, suffering no negative effects when it ends.