A Waste snake is a place on the scrum board where everyone can hang a "post-it" of everything that slows them down during the day

I know there are no gadgets for this, though gadgets can only be added to the dashboard as opposed to the task board anyway...

There is loads of room in the toolbar for another icon, have a cool snakes like icon, which when clicked either has a pop out list which comes in like to the right of the done column. One would have the options of keeping this open or not. Waste snake entries should be quick to add, I guess they could be a new JIRA issue type but that's overkill perhaps...