I would love it if someone could do this.

To summon a skeleton, a magic human skull is required and is used up.

To summon a Fire Elemental, iron ore and a candle is required, the iron ore is used up.

To summon an Ice Elemental a bucket of water is used up (not as costly as the fire elemental, but you do have to go somewhere to refill the bucket.)

Man at Arms bandages skill requires crafted bandages.

You get the idea, I think it would be awesome if most of the spells required components.