DD1 just had a blast at her friend's birthday party, until we got in the car with that damn goodie bag. It happens every. single. time. It's like a perfect storm of flimsy plastic junk and treats that aren't safe for nut allergies. I dread the sight of them at every party.
Vent over.
Re: Birthday party goodie bags are my nemesis
Oh I was just having a bad day
She had such a good time at the party, and then it was meltdown city on the ride home. Her heart has been broken so many times by plastic slinkys 
I bring a safe cupcake for her, but I just take out the goodie bag treats before I give the other stuff to her. People mean well, they just don't realize how many things are "made in a facility." DD's peanut allergy is really bad, so I don't take any chances.
On Halloween I do trade out stuff, though. I get toys and safe treats, and swap out the unsafe candy.