Big enough for a number of participants to gather round, we think these make a great review and learning tool. Here's just one way to use them:

 

Put your participants in teams and gather them around the tower of blocks. Ask each team in turn a question based on the contents of your course/workshop. If the answer the question correctly they have to remove one block and place it on top of the tower - if they get it wrong they have to remove two and place them on top! Hidden in the tower are five marbles - each of these can be used as 'pass' tokens, letting the team that found it off having to move one block. The team that causes the tower to collapse is the losing team - but we suggest you don't make too much of that!

 

Dog not included!

 

(Our toys and props are carefully selected for use by professional trainers. This toy is not suitable for children under 3)