Microsoft Store offers the HP Star Wars Special Edition 15.6" Laptop Sleeve in Black/Gray, model no. P3S09AA#ABC, for $37 with free shipping. (BidDeal_co via Amazon has it for about the same.) That's the lowest total price we could find by $3, although we saw it for $7 less two weeks ago (however, that required in-store pickup). It fits most laptops up to 15.6" and features a water-resistant exterior and padded interior.