Ironing Board Shim Gasket Washer
Stop dropping your iron on the floor with a wobbly ironing board!
Ironing boards always wobble. Cheap version (and sometimes not-so-cheap versions) have play in the leg joint. Build this shim gasket washer thing and snap it in place to tighten up the pivot point.
Build the gasket for a few cents of ABS and save yourself from having to buy a new iron.