New 20 ounce tumblers available now! Forum donation credit with purchase. https://www.wildguzzi.com/Products/products.htm#Tumbler
For enlargements I take most any size drawing to a print shop. Many will take a sent emailed drawing. Choose the paper you like, max dimension limit and Bob's yer uncle ! Most 'Staples' stores can do it; including multiples, color codes, mounting on foam core, sealing with clear film. R3~