Planar Bubble (Clr7/Wiz7 spell, source: Spell Compendium) copies all planar traits from target creature's native plane. Area: 10-foot-radius, mobile; duration: 10 minutes per casterlevel.
Planar Bubble (Planar Shepherd classfeature, ECL 10, source: Faiths of Eberron) same as the spell, except that a Planar Shepherd can only cast it on herself, and thus can't pick a different plane each time. Area: 20-foot-radius, mobile; duration: concentration + 1d10 rounds.
Orrery of the Planes (item, 50,000gp, source: Eberron Campaign Setting) copies one magic trait from any outer plane. Area: 60-foot-radius, stationary while in use; duration: no maximum duration, can be turned on an off.
Anchor Plane (Psion8 power, source: Faiths of Eberron) copies one planar trait from any plane. Area: 150-foot-radius, stationary; duration: permanent.
Intensify Manifest Zone (Clr7/Druid7/Psion7, source: Faiths of Eberron) permanently adds one more planar trait to an existing manifest zone, such as the one created by Anchor Plane or Orrery of the Planes.
Precipitate Breach (Wiz5 spell, source: Planar Handbook) copies one alignment, elemental/energy, or magic trait... Unfortunately, you can't pick from which plane, it's just random. Area: 10d10-foot-radius, stationary; duration: 1d6 days.
Precipitate Complete Breach (Wiz9 spell, source: Planar Handbook) creates an inter-planar portal whose surroundings (on both ends) are affected by all traits from both planes... Unfortunately, you still can't pick the destination, it's just random. Area: 10d10-foot-radius, stationary; duration: 1d6 days.
Acorn of Far Travel (Druid2/Ranger2 spell, source: web) is probably not intended to interact with planar travel, the spell's author clearly didn't consider it. But a literal reading of "As long as you carry the acorn, you are considered to be standing under that oak tree's canopy (and thus within an area of forested terrain)." might imply that you're subject to the planar traits of wherever the tree is, too. Area: self-only, mobile; duration: 1 day per casterlevel.
Portal Seepage (source: FRCS and PGtF for how to craft permanent portals, and Underdark for the seepage effect) Sufficiently old portals may transmit planar traits from one side to the other. The books treat this as an undesired but common side-effect, and don't provide any rules for hurrying it up on purpose. Area: typically 5-foot-radius per 100 years of age, stationary; duration: permanent.