Optimizing Untrained Skills

[MaxiDuRaritry]

I know lots of ways to boost trained skills, but what options exist specifically for untrained skills?

The kraken's bracelet, from Dragon Magazine, grants +2 insight bonus to Knowledge skills and allows Knowledge skills untrained.

The third eye: improvisation, from the MIC, grants a +5 competence bonus to one untrained skill 1/day, and allows you to utilize that skill as if you were trained in it.

The Jack of All Trades feat gives you an effective 1/2 rank in all skills, even if you have no ranks at all, and Bardic Knack boosts that to 1/2 your bard level.

Anything else?

[Gildedragon]

Naberius lets you use untrained Trained-Only skills as if you were trained

[daremetoidareyo]

kender gets you sleight of hand and bluff as untrained skills. but not as class skills.