A professor created a teeter-totter on the border of the United States and Mexico so citizens of both countries could form friendships : r/Damnthatsinteresting
Teeter-totter Dog Park Agility Course Components at Lowes.com
Now That's a Teeter Totter! | Minneapolis Park History
Teeter-totter Dog Park Agility Course Components at Lowes.com
TEETER-TOTTER definition | Cambridge English Dictionary