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This round we asked: What is the best souvenir you've ever collected from your travels?
Michelle Fasching, 15, Maryknoll Convent School
I have a pair of chandelier earrings from Singapore. They've got beautiful, purple, teardrop-shaped gems on them. But it's the painful memories they bring back that make them the best - the memories of those gigantic, dangly earrings tangling with my hair. They've taught me never to wear large earrings, so now I just keep them in a box, where they look pretty and completely impractical.
Jessica Chan, 15, St Paul's Convent School
A little white tiger keychain from a safari in China. I remember throwing a fit when I was nine years old because my sister bought souvenirs but I couldn't find anything special.
Then I spotted the adorable white fur-ball as we were leaving a small shop. I remember forcing my mum to hand over her wallet, which she did, surprisingly!
That, or the original hard-cover Harry Potter books I bought in Cambridge. Be jealous.
Ice Chan, 13, St Rose of Lima's College
Among many marvellous souvenirs I have collected, rosemary tea leaves are the best. I got them from Fujian . They enhance the quality of my sleep and memory, and help prevent heart disease. I used them once when I couldn't sleep after watching a horror movie. And they really worked. The rosemary tea leaves are the most simple yet pragmatic souvenir I have ever collected.
Rosemarie Ho, 15, Baptist Lui Ming Choi Secondary School
A rock from Taiwan. No, I'm not trying to be funny; it's true! My rock is the best souvenir I've ever had. It's oddly shaped and sandy-brown. It's not particularly attractive, but it reminds me of the breathtaking Yehliu Geopark, with its hoodoo stones, unforgiving cliffs and rock formations. This landscape is a reminder of how insignificant I am on Earth.
Vanessa Lai, 15, Sacred Heart Canossian College
The best souvenir I've ever collected is a pebble from a beach near a shipping terminal. It is very special because it is crescent-shaped. One side is grey; the other is brick red. It is smoother than a baby's face and is even a bit glittery. I use it as a "toy" for my pet tortoise. He seems to like the stone almost as much as me!
Lillian Wong, 16, The Chinese Foundation Secondary School
I collected my best souvenir during a trip to Taiwan this summer. It was a study tour for winners in the Low-Carbon Guru competition organised by the WWF. We learned about environmental protection work on the island and met like-minded young locals. We went cycling and talked about our school life. After a day of fun, we bade farewell at a train station and took an instant photo. We all signed our names on it. It was really a heart-warming souvenir that I'll never forget.
Vanessa Sin , 15, St Paul's Convent School
Usually, souvenirs are allergy-enhancing stuffed toys and key-chains that everyone secretly hates. But my best-ever souvenir is a memory ... of the smell of books I came across in Offstage at Treadwell's, an old bookshop in London. For one beautiful moment, I felt as if I was Harry Potter when he first learned that he was a wizard. Purely magical.
Thomas Cheung Chak-wang, 17, Shatin Tsung Tsin Secondary School
I bought a xun when I was travelling in Xian in June this year. The xun is a flute-like Chinese musical instrument. Each xun has a different picture on it. I bought one with a lotus. It reminds me of Zhou Dunyi's song My Love for the Lotus. Also, as a member of a Chinese orchestra, I can play my xun together with the other members. Let's play a song together!
Lexie Lee Hoi-ching, 16, Hioe Tjo Yoeng College
My favourite souvenir is a CD I received from a volunteer by the River Thames. It has a collection of video clips made by local youngsters. They investigated how local students and foreign visitors view various tourist attractions in London. It is quite intriguing to see what different people from different places think of those attractions I visited.