If you build the candy cottage, the children will come.
If you build a temple, people will come and, being pagans, they will, of course, bring offerings.
Offerings belong to the god, which makes them (by definition) sacred. So what do you do with them when they begin to pile up?
With consumables, that's one thing. Libations are poured out onto the ground. Token amounts of food are placed onto the earth (but never directly; they should always be placed on a layer of something biodegradable: leaves, grass, sticks). Food offerings in quantity traditionally revert to the temple staff; part of the god's responsibility to his people is to see that they're fed. (Richard Reidy calls this “reversion of offerings.”)
But the non-consumable offerings, what of them?