Both of my children wear clothes (and, when they're at my mum's, play with toys) that have been in the loft for 30-something years since I was little. And they're fine! Things that have been well-wrapped I just air first, things that may be grubby or smell a little musty I wash.
I wanted to use the wicker cradle that was up there too, but dh felt it would be too dirty. He's a far neater, cleaner sort than me, and anyway, he wanted to buy new things for his firstborn!