For two days only—today, December 13th, and tomorrow, December 14th—you can take 40% off your total order at DisneyShopping.com. Just click through and use coupon code SEASONSALE.
Remember: At Disney, you have to be logged in to apply and use coupons. Also, their coupons have lots of terms and restrictions, so read the fine print before purchasing. (Off the top of my head, I recall that coupons are generally not valid on video games, for example.)
Check out item number 51612P. If that came in larger sizes, Otto would totally want them for his bed.