Puzzle-brainteaser shop

Hi all,
I am looking for a shop (in Taipei) that sells metal/wooden puzzles/brainteasers (for example: http://eshop6372.hiwinner.tw/ec99/ShowCategory.asp?category_id=55%20)
I am particularly looking for this puzzle : http://www.seriouspuzzles.com/i5395.asp .
I did see a booth at the Bithan scenic area (during the dragon boat races), but did not get their card and have no idea how to locate them. (dummie me)
thanks much in advance!