The creative people at Weijers Domino Productions continued their annual tradition of besting their own record by toppling 4,079,381 dominoes on November 17th, 2006.

Each year, dozens of builders, led by Robin Paul Weijers, hold an event called Domino Day. For 2006, 4.4 million dominoes were set up at the WTC Expo in Leeuwarden, Netherlands.

The theme was "Music in Motion", and translated many musical genres into an elaborate domino show. Several difficult "builder challenges", in which dominoes are set up while the rest of the field is falling, were not finished in time. But one successful completion put them over 2005's record of 4,002,136.

Ma Li Hua toppled 303,621 dominoes on August 16th, 2003. She beat the previous record of 281,581 dominoes set by Germany's Klaus Friedrich in 1984.

The 24-year-old "dominologist" from Beijing spent 45 days at the Singapore Expo setting up. She persevered through backaches caused by working over 10 hours a day.

Ms. Ma also had to contend with cockroaches and butterflies that would accidentally knock down her dominoes. The pests (in every sense of the word) were repelled with sticky traps and pungent leaves.

The dominoes took about four minutes to fall and only seven of them remained standing. Ma Li Hua has hinted that she may try to break the group record in the future.