Wait for your 2nd package, it’s usually in there with the other goodies.
Oh no! I’m so sorry that your power cord was missing.
Your power cord for your Glowforge should have been in the accessory pack containing the crumb tray and vent hose—since you edited the title of your post, I’m thinking you might have found it there. If that’s the case, yay!
If it’s still missing, please tell us, so I can make it right and file a report with our team.
I can send you out a new one, or, to get up and printing faster, you can purchase a compatible cord or plug from a local store. Any Desktop PC (grounded IEC 60320-C14) cord will work. If you purchase one locally, please let me know so I can reimburse you.