Things You'll Need
Instructions
Apply wood glue to the crack or break on the boomerang, applying it to both pieces if it has been broken in half.
Press both sides of the boomerang together and place it into the vice.
Wipe off the excess glue along the crack or break with a clean cloth.
Leave the boomerang in the vice for 24 hours to dry.
Remove the boomerang from the vice and rub the crack or break with medium-grade sandpaper to even it out with the rest of the boomerang.