Giant Plastic Easter Eggs

[raptorgirl.livejournal.com]

Does anyone know where I can get giant-sized plastic Easter eggs this time of year? And when I say giant, I mean GIANT. Like notebook paper-sized. It's for my Halloween costume. I'm trying to make a papier-mache egg using a balloon, and it is just not sturdy at all.

I promise I'll post pictures when the costume's done. :)