Can someone tell me where to find a list of the different elixirs and what they make each pet look like?

subetahq. they have all the pet colors/combinations.

subetalodge is also an excellent resource for item lists, and neocolours also has a good graph of all the pets and their colors.

Items that change your pet's color are called potions. Items that change your pet's color AND species are called elixirs.

Here's a list.

The potion and color name generally corresponds with each other.

For example; Bloodred Demi. Bloodred Potion.

Click on Search and then write elixirs in the box - you should then have a complete list.