@create <object> [=<cost>[=<regname>]]. Creates a new object and places it in your inventory. This costs at least ten pennies. If <cost> is specified, you are charged that many pennies, and in return, the object is endowed with a value according to the formula: ((cost / 5) - 1). Usually the maximum value of an object is 100 pennies, which would cost 505 pennies to create. If a <regname> is specified, then the _reg/<regname> property on the player is set to the dbref of the new object. This lets players refer to the object as $<regname> (ie: $mybutton) in @locks, @sets, etc. Only a builder may use this command.