
MichaelCullen |

Well to my knowledge there are no rules for being thrown in PF, but there was a feat in 3.5 from Races of Stone that let you throw someone who was a size category smaller than you.
On the other hand Legolas threw Gimli, so rule of cool?
If your DM is looking for something to base PC throwing off of, have them take a look at the rules for throwing weapons.
For weapons that are not designed to be thrown:
Throwing a light or one-handed weapon is a standard action, while throwing a two-handed weapon is a full-round action. Regardless of the type of weapon, such an attack scores a threat only on a natural roll of 20 and deals double damage on a critical hit. Such a weapon has a range increment of 10 feet.
Furthermore:
Every weapon has a size category. This designation indicates the size of the creature for which the weapon was designed.
A weapon’s size category isn’t the same as its size as an object. Instead, a weapon’s size category is keyed to the size of the intended wielder. In general, a light weapon is an object two size categories smaller than the wielder, a one-handed weapon is an object one size category smaller than the wielder, and a two-handed weapon is an object of the same size category as the wielder.
So throwing a weapon that is a size category smaller than the thrower can be done as a standard action. Throwing a weapon that is the same size category is a full round action.
I would ask the DM to treat you as an improvised weapon of your size category.
So, bottom line, I would be small so that my medium allies could throw me as a standard action vice a full round one.

Inlaa |

Wait. Dumb idea: is it possible to dangle a halfling buddy from a Blinkback Belt so you can make as many attacks in a given round as you want with him? Probably not because an improvised weapon is not a weapon; it's something you use AS a weapon; but the idea was so hilarious that I felt a need to mention it. Just imagine the bulky half-orc warrior carrying his spiked full-plate clad halfling friend on a chain attached to his belt, then taking him off the chain and throwing him repeatedly at the enemy.

Inlaa |

Concerning rock-throwing: How do we gain hardness as a creature so we're usable with Rock Throwing? Otherwise, our ally needs Throw Anything, right?
...or could the person throwing the goblin actually be throwing the full plate the goblin happens to be wearing?
And yeah, this build definitely needs a willing GM.

Inlaa |

A gnome is also a small creature, and I can easily imagine a gnome in some kind of armadillo (banded mail) armor that they have jiggered so that they can roll up like a pillbug into a perfect sphere.
Or, a football that someone drop-kicks over the goalpost
My friend is discussing making a tetsubo-wielding orc that uses the tetsubo like a baseball bat to send my armored goblin who dreams of flying soaring at the enemy in spiked full plate.
I'm tempted to make the goblin a grapple expert that readies an action to initiate a grapple upon making contact with an opponent.

avr |

The hurling barbarian rage powers are another way of throwing your PC. They don't require a hardness though 'This damage is halved if the object is not made of stone, metal, or similar material.'
Besides actual barbarians, primalist bloodragers can get rage powers from 4th level, and half a dozen or so classes can get them later.
If it needs to be rules-compliant then the tetsubo guy needs some sort of bull rush ability to send you flying.