May's Challenge - Hide Your Head Under a Cushion

May's challenge is to teach your dog to hide its head under a cushion.

Rules for this challenge:
1. Shaping is preferred (but remember that judicious placement of your reward after your click is always allowed).
2. Extra points for coming up with a cool cue for this.
3. Have fun!
4. Videos are due by May 20. You can post a link in the comments.