A big part of what draws me to found objects is their "voice".
Every object once used, now discarded, has its own unique story of its life up until now.
An object's patina (signs of age) hints at this story, and if you are looking for an exercise that will spark your creative juices, try contemplating life from the object's point of view!
Hold the bowl/spoon/gadget carefully.
Be quiet and still and "listen" to it.
Consider all the things it might have "seen" in its lifetime.
What images are conjured up by this exercise? What emotions or memories are stirred by your own contemplation?
Kitchen discards are particularly interesting artifacts: you can tell a lot about people by their pots, pans and the utensils they eat with!
Usually, kitchenware is designed with very high standards of durability. Since it is built to withstand rough conditions, it is especially good for functional crafting: garden sculpture, wall hooks, etc.
Thrift stores are a great source for old dishes and trays, silverware, etc. Have fun browsing their kitchenwares sections and keep your mind open to new ways to use these veterans of the heart of the home!