Perhaps start a fun little discussion with the Hogwarts Express conductor that gets him to reach in his pocket for something, and when he pulls his hand back out he reveals the ring. Obviously, you then take the ring from him, have him make a funny yet sentimental remark, and then begin to work your own magic!
Or in the gift shop (after you both have ridden the ride) or in Dervish and Banges, you two can browse for some random stuff and decide on some neat thing to purchase. Have the cashier tell you that you're getting a "free gift with purchase", the cashier then produces the ring.
Or in the gift shop (after you both have ridden the ride) or in Dervish and Banges, you two can browse for some random stuff and decide on some neat thing to purchase. Have the cashier tell you that you're getting a "free gift with purchase", the cashier then produces the ring.