Wild Shape Effective Level Bonuses: What non-item means exist?

[Endarire]

The Beast set from Complete Champion gives +1 effective Wild Shape level (EWSL).  A Wild Shape Amulet gives +4 EWSL, max 20 total.  A Skin of Kaletor gives +4 EWSL with no upper limit.

What about bonuses to EWSL from feats, affiliations, race, or otherwise?

[Keldar]

Relevant Guide.  But you've already one upped it for EWSL.  Next stop would be to sift the Dragondex for druid articles.

Have you excluded at extending Arcane Hirophant levels via Legacy Champion, et. cet. shenanigans?

[Endarire]

Already checked and nothing.  (Pathfinder has the Shaping Focus feat which is +4 EWSL to a max of HD.)

Thankee though.