There are none. An elastic collision is one where there is perfect transfer between the things that are colliding, and this just doesn’t happen in the real world.
This said, it is sometimes convenient to pretend as if real-world collisions are elastic either to illustrate a point or to simplify the underlying mathematics:
Other collisions are not very elastic and never treated as such. For example, if I drive a Buick into a wall, most of the energy goes into squishing the Buick, rather than just transferring it to the wall. If it was a simple energy transfer, the Buick would be just fine afterwards.
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