Rotating Feat as a class ability

[Yogibear41]

Is there any other class that lets you rotate a feat out on a day to day basis the way the Chameleon prestige class does?

[Psyren]

Brawler from PF has "floating feat" mechanics.

[Thurbane]

Persisted Heroics spell?

[Cruiser1]

Void Disciple PrC (CD) allows one to grant a target any feat a few times a day (although the granted feat doesn't last all day).

[Bohandas]

The Chameleon class from Races of Destiny lets you rotate out bonus feats and other class abilities

[Zaq]

Warblade offers a limited version, but it only works on feats that involve you picking a specific weapon.

[Anthrowhale]

Heartfire Fanner can grant fighter bonus feats via bardic music.

Warblade Weapon Aptitude provides flexibility in weapon-specific feats.