Craft Skull Talisman from Frostburn lets you store any spell that targets one or more creatures in a skull. Small or smaller skulls hold up to 3rd-level spells, Medium skulls hold up to 6th-level spells, and Large or larger skulls hold 9th-level spells. Whoever breaks it is targeted by the spell (not sure if you could chuck it at someone or not). They cost twice as much as potions.
So, basically it's a poor man's shadowcraft cookie, but you can do it up to 9th level. Thoughts on optimization potential?
