A relay race that uses images of lego models and a set of bricks for each team.
Images of lego models taken by ourselves
A large number of lego bricks (we use duplo)
All beavers are split into teams of equal members. On the word GO the first beaver in each group has to run to the far end of the hall.
Here he/she is allowed to look at the picture of the model for as long as they wish. The then have to chose a lego brick, from a bucket containing several. Some will belong to the model shown and others won't. They take there brick back to the team and the next runner goes. The beavers then have to rebuild the model they saw. First team to finish is the winner