Sacred Haven of Debauchery

If you live together, write a marriage proposal on your stomach, place a ring box and a note on top that says, "Sweetheart, if you agree, wake me up :)"

Offer to give her a foot massage and discreetly put the ring on her toe.

Invite her to the place where you first met. Bring candy and champagne and propose to her.

Arrange with your colleagues (or classmates) to have them deliver a letter to your girlfriend, in which you write about your feelings. When she finishes reading it, you come in yourself and ask her the question.

A marriage proposal on the roof of a 9-story building will be unforgettable (if possible, find a taller building, it will be even better). Bring a table, champagne, candy, and don't forget the flowers and the ring. This is a quite realistic and original proposal.

All girls dream of a prince on a white horse. So, fulfill your beloved's dream: you are the prince, all that remains is to find a white horse. Imagine how surprised your girlfriend will be when she sees such a rider! And if you can find a knight's costume, success is 100% guaranteed.

There is also a "school version." At night, write the phrase "Marry me" on the asphalt outside her window, and in the morning, when the girl wakes up, come to her with a huge bouquet of flowers and shout about your feelings for her to the whole courtyard.