what ways can you gain a borrow speed?

[Splitlip]

Polymorph the spell
Burrow (ranger spell)
wild shape (Druid)
are there others? magic items?

[Splitlip]

Well, just found a couple more:
Delving (armor enhancement)
burrower's bridle (magic item

feats:
ratfolk burrowing teeth
oread earth glide
warren digger (ghoul)

anything else?

[icehawk333]

Sorcerer bloodlines.
Eldritch heritige.

[Splitlip]

Well I see the shape spells and monstrous physique also grant it if you take on the shapes. but potions can't be made from personal spells, and wands require umd checks. if someone has a neat build that burrows I would like to see it. Thanks.

[The Todd]

If you use Psionics
Metamorphosis power 15ft

[LazarX]

You go to your friend and say

"Phil... let me borrow ten bucks."

And he says "Sure" because he's your friend.

You've now acquired a borrow speed of ten dollars.

[Westphalian_Musketeer]

Alchemists get burrow as an extract spell.

[demontroll]

Have someone with a high animal handling skill tie a badger to each of your feet and hands.