OK, please clarify what you mean. An Apple laptop AC adapter comes with the following, whether it's included with a computer or bought as a spare:
1. the AC adapter with tethered DC cord to the computer
2. attached to #1 is the "duck-head" ungrounded plug, selected for your country
3. a grounded AC cord that attaches to #1 in place of #2.
What do you need?
tooki