After they've dried, use a black Sharpie marker to draw or cut black felt to glue the eyes and mouths onto the squash to make ghosts:
The one on the far left is Alice's, so it's a bit more abstract. I think they are darling and they last longer than a carved pumpkin. Lucy and her little friend loved drawing scary faces and they make great party favors for guests to take home rather than a bag of cheap plastic and candy goodies. We love decorating for Halloween and the amount of stuff we have for this holiday rivals the amount we have for Christmas. We also made this little recycled craft my friend Shannon over at AnchorMommy.com came up with and they are so simple and fun for kids, too. Both of these crafts, the squash ghosts and the jar jack-o-lanterns, would be nifty activities to do AT your kids' Halloween party. And, as always, the best thing is that they are very inexpensive, easy, and eco-friendly!