Unarmed strikes for monks - improving it

[Atalius]

Is there any way via feats that a monk can increase there unarmed strike damage dice roll? for example like how strong jaw can increase a druids damage dice roll in wild shape form, can the monk acquire any feats or items that can allow him to hit one or more categories higher?

[Imbicatus]

You can take the brother of the seal prestige class, you can have a Druid cast strong jaw on you, you can get an impact amulet of might fists. You can add 1d6 acid to every unarmed strike with deliquscent gloves.

What you cannot do is take improved natural attack, because it explicitly disallows unarmed strikes.

[Claxon]

There's jabbing style, which will give you extra d6s of damage.

[Jurassic Pratt]

The impact enchantment doesn't work. Unarmed Strikes are considered light weapons and Impact doesn't work with light weapons.