A miniature Viktor Krum figure was bought by Ron Weasley when souvenir saleswizards appeared next to the campgrounds just before the start of the 1994 Quidditch World Cup final match, which used up all his pocket money (GF7).
Other Quidditch World Cup souvenirs seemed to lose magical power in the days after the match, so we do not know how long the animated movement of these miniature figures lasts.
Lexicon timeline of Quidditch
Lexicon list of Seekers
From the Web
Writing by J K Rowling on Imgur (Daily Prophet coverage of the 2014 Quidditch World Cup, originally from Pottermore):
MuggleNet: The Best Moments of the Quidditch World Cup
Harry Potter Wiki: Miniature figurine of Viktor Krum
WizardingWorld (Pottermore): Why Viktor Krum was a better boyfriend than Ron Weasley