The idea: Purchase your favourite album on vinyl — or one that means a lot to you and baby's parent together — and have someone buy a box or crate to keep them all together (or tie the pile with pretty ribbon for gifting). If their parent doesn't already have a record player, plan to purchase one for them as a group so they can play the music for baby once they're born!
Make it extra meaningful: Write a bit about your favourite song on the album or why the collection as a whole means so much to you as a dedication of sorts.