Acid immune templates?

[Zeal]

Quick question: What templates, if any grant acid immunity?

[NEO|Phyte]

Half-dragon, if you pick the right color.
:edit: black, green, and copper can get you immunity to Acid.

[Ryuuk]

Voidmind as well, along with a few other immunities.

[The_Snark]

The acidborn template. Although that comes with its own disadvantages.

[Douglas]

The Saint template from Book of Exalted Deeds gives acid immunity, among other things.

[bosssmiley]

ECS's Horrid Animal template (basically Dire++).