Here's my suggestions

Electric rabbit
3eF - Fiesty Flurry Friend

Grass raccon
Boneyclub - These two objects caught my eye as soon as I saw it

Water whale
Gelfinna - the first thing you notice is its eye which looks like a dot of gel. I've added finna to the end as Gelfin sounds a bit boring

Fire wolf
Eclipsemile - a combination of eclipse (ring of fire) and it's lovely smile

Now I'm going to check what the others have come up with as I avoided reading the comments first