Must Watch! Souvenir from Hong Kong! Posted on September 1, 2013 by Effraim — 7 Comments ↓ Souvenir from Hong Kong from Matthias Dandois on Vimeo. Matthias Dandois and Viki Gomez are in Hong Kong doing Red Bull flatland shows. In their free time they have sessioning hard, check out this dope edit with both guys throwing down stuff they don’t do in contests!