My niece Gretchen is a modern baby and doesn't travel with toys. So while she was hanging out at my parents house I let her borrow a few of my old things.
First up was my toy rocking cradle (made by my dad over 20 years ago). As she was finishing up her bottle we set her inside. She enjoyed it for about as long as her bottle lasted.
But she did enjoy sitting in the chair and throwing everything out of the crib. I also let her play with my Popple, which she loved (she has great taste).