These are too big to put in a suitcase, and shipping them would cost several hundred dollars, at least. So I bring them flat and stuff them the day before the convention. The cost of an extra day of hotel is actually cheaper than the cost of shipping would be, and the extra time is nice in other ways too. :3

Ten foot Discord "coiling" plush that you can wrap around things.
Three foot tall standing Luna plush.
Three foot long lying Nightmare Moon plush.
And three foot long lying Applejack plush.

All will be auctioned at my booth at Bronycon. Feel free to drop by and have a look at the finished, stuffed versions if you're there. (Though I will be taking photos to post when I get back.)