Don’t ask me why I thought about this, but hows this:
Buy a book full of poems, Get one with quite a few, not just 4-5 poems and each poem should be a page long. Carve a heart in the pages leaving only the first few pages intact. Sew the engagement ring to the back of the book so that it’s in the middle of the hear you carved.
Suggest you take turns reading the poems and plan to read the last complete poem and give your girlfriend the book, she will turn the page and reveal the heart and the ring that were hidden inside.
I find that this proposal idea is not only creative but also incredibly romantic. What do you think. Think you can be more creative then me ?