I have bought several of these sets of hourglasses for my current client.
I have given every team doing a standup a 15 minute hourglass. Next to that I left set like this in different meeting rooms.
The idea, if a discussion takes too long, anyone can turn an hourglass and make it visible that she thinks the discussion takes too long.
By polular request: You can buy the hourglasses at TeamBuilding Shop if this no longer work, you can buy them at amazon.uk
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