I found the Master Alchemist prestige class in the 3rd edition book Magic of Faerûn (p. 34-35), whose main shtick is making potions of up to level 9 with full casting progression (without type!).
The first thing that came to my mind while reading this was "So wait, you can use this to put Fireball in a bottle?". So my question is: with full ranks in Master Alchemist, can you? And what about other such spells? Like Finger of Death, or Imprisonment, or Implosion or other such fun stuff. And what about Summon Creature? Could you create yourself pseudo-Pokéballs this way? And I take it that you'd need to use oils instead of potions, because making a Beholder drink a potion of Harm is quite the task.