Any known Alchemist prestigie classes?

[TheArsenal]

Other then the master chemist alchemists have no prestigie classes. Its mostly because all their abilities are important to them.

Drop bombs/ Sneak attack? Loose out on half the class.

Loose Casting? Same thing

Any good home brew alchemist/ psionic (Psionics unleashed) prestigie classes?

[Curious]

I've been thinking of making a duel-progression prestige class for Kellus' Xenoalchemist with the Alchemist, but haven't gotten around to it yet. Or asked Kellus for his permission. So, yeah, it's not happening right now.

[Lonely Tylenol]

Magic of Eberron has the Alchemist Savant. Technically 3.5 instead of PF, and so it doesn't advance bombs, but it has some cool abilities regardless.

I was working on a PRC that could advance the Alchemist/Artificer/(caster of choice) and had some cool alchemist/potion-making abilities, but found the Alchemist Savant during my book-diving for my Permanency list and decided against it, since some of the abilities I had in mind were identical to the Alchemist Savant's ability (namely, the Spellvial, Create Alchemical Mixture, and Efficient Alchemy).

I may pick it up again, since there was a particular feature that I feel people could have a burning need for that was never explored, but the class will likely be very niche, grossly underpowered, and/or hard to separate from the Alchemist Savant.