You need a second controller for this method.
Just got this achievement after trying all of the above and none of them working. This method is for people who were in my situation (tried everything) or people who dont want to pointlessly grind when you can get this achievement quick (even though it is luck based).
Even though it's luck based, you can improve your odds of getting the item by:
# Playing in co-op
# Having someone that is not you be the Level 1 in the game with you (e.g. a guest account.
#Having pretty much every other item (then it will just be nuts or the carrier)
I was Level 49 when i got this achievement, just for reference.
So, the steps:
Step 1: Play Game (menu option)
Step 2:Profile you want the cheevo on should be player 1
Step 3: Sign in any account that has never played before (or make one if you dont have any) as player 2.
Step 4: Load up Adventure 2-DownTown RoadBlock-Normal
Step 5: Complete level and all bonus levels (and kill enemy spawn blimp) to maximise chances of the item dropping.
I got it on my first try, if you don't here's what you should do.
Step 6:Back to main menu, create a brand new profile for player 2 (so it's level 1 again) , play the same level again, rinse and repeat.
If Step 6 doesnt work, then try the survival level on Adventure 1.
FAQ:Use your best equipment to beat this the quickest, wearing lower level items will not make the carrier spawn, that makes no sense from coding terms.
Hope this helps, leave feedback if it helped you, or if it could be improved.