Meetings, meetings and more meetings

We all have been through a lot of meetings and know that a lot of these meetings are

Mis-managed
Kill time
Reduces organizational productivity
Boring

Yet, we can’t do away with meetings completely as they are also required to do business.

There are many ideas to improve the effectiveness of these meetings. Seth Godin in his blog talks about Making meetings more expensive which will ensure that there are less of meetings and would be more productive.

Some un-conventional ideas to make meetings interesting and little more productive could be

Have stand-up meetings. No place to sit down.
No meeting room with space for more than 3 people. Any gathering of more than 3 people to happen in the open (cafeteria, someone’s desk, water cooler, etc)
In big corporations, get people to pay (internal cross-charge) every time someone uses a meeting room and put an upper limit on the budget that can be utilized for this usage

Have you seen any un-conventional way that meetings can be made interesting or productive?