These take about 3 hours to make, excluding glue drying time and making the iron-on eyes (since I can make those in batches). It's a little bigger than a fist.
If you want one or have any questions about ordering one, all of my commission information is right here - they're £10 excluding shipping and come in whatever colors of fabric I happen to have at the time!
They're good if you want something pony-related but still subtle - if anyone asks, you could just say it's a bug or something, for example.