K’NEX 20 on 20 October Contest

http://www.knex.com/20thanniversary/Mission20on20/?s=how-to-play
The 20 winners will each receive one (1) K’NEX building set(s) of their choosing (up to a maximum of $100 approximate retail value). Each winner will only receive 1 (one) building set – winners cannot choose more than 1 building set, even if the approximate combined retail value is less than $100.