@chown

From Tapestries MUCK

The @chown command is used to set an object, action, or room to be CHOWN_OK. A player can use @chown to take ownership of any object set to CHOWN_OK, but only a Wizard can @chown something to another person.
The syntax to take ownership of something with @chown is: @chown dbref=me Alternately you can use the name of the thing instead of the dbref