There's need to do more with our proposals - relationships or marriage.
Less corny, material proposals, with; food, pastries, drinks, candles, rose petals etc, to more thoughtfully creative ones.

A few ideas:
Play fun games together.

1. Stage a Scavenger Hunt. . .

...In one of such games, plant clues to lead them to the final clue/piece; You.

2. Spell it out in a photo album. Hard copy.
Document memorable photos of y'all. Your silliest moments/milestones. Leave a space for a new photo at the end, asking to share such memories forever.

3. Do a mixtape of her favourite songs, with a recording of your voice as the last track; asking the question.

4. Edit in a video clip of you, asking the question in her favourite movie, as the end credit.

5. A digital presentation of why she's irreplaceable; question attached.