Union Pacific 4-8-8-4 Big Boy Mousepad Union Pacific 4-8-8-4 Big Boy Mousepad Description:. Mousepad features the artwork of Mark Karvon and has a textured washable plastic surface bonded to a natural sponge rubber base. 8" x 9 1/2". We have more mousepads in our eBay store. Click here to see them all... More Union Pacific items are available!  Click here to view them all. Shipping:. Standard shipping is USPS First Class Mail with Delivery Confirmation.  Priority Mail is available for an additional charge.  International buyers please read our International Shipping Policy before bidding.   Payment:. All payments must be received within 7 days. By bidding/buying this item, Bidder/Buyer agrees to all terms and conditions. auctions :feedback :store :about :contact Please visit our eBay store! Template Made By: Inkfrog Template Center © DO NOT DUPLICATE OR COPY!