Reuse an old tree to make a log pathway in your garden. Good use of "yard" trees and other wood that can't be milled; works much better in climates without termites. Good drainage under the log rounds will make the path last longer.
The idea behind Marleen Jansen’s See Saw Table is that it helps ensure that everyone stays at the table until the meal is finished. Of course, the meal will conclude pretty quickly when someone vomits or dad sits across from a 3 yr old kid.