Due to my well-known status as an inveterate cat lady (or barren baby-hating witch* to my friends), I like to expend my excess maternal energy on my cats (which they just love, let me tell you).
*Note: I don’t actually hate babies. I actually quite like them when they belong to someone else, and have even been known to call one cute (shh don’t tell anyone). I can’t refute the witch thing though.