The game is simple:

Someone posts a list of random ingredients to make a potion (but doesn't say what the potion is).

Then someone posts their idea of a potion that would come from those ingredients and it's effects.

Then they post their ingredients, 

and so on.

Rules: You can't post twice in a row. Let someone else post before posting again.

Don't be inappropriate.

Don't be rude or offensive.

I'll go first:

One button-capped glowing mushroom

One spell scroll of Wish

One holy symbol of Pelor

A lit candle

Top it all off by casting Light on the brew.

A potion of summon God, 

my ingredients are:

Colourful glowing mushrooms,

spine of a green dragon,

3 nightshade berry’s,

pork fat,

Corrupted unicorn horn,

sprig of poison ivy