Crazy Strong MTG Commander Deck Box Available in Hardwood or | Etsy
DIY Jumpstart Deck Boxes from Cardboard - link in comments (bonus use: cube packs) : r/magicTCG
The Hydra 5 Compartment Riveted Deck Box w Magnetic Closure- Card Case Holds Five Decks- Fits All Standard and Smaller Size MTG and TCGs - White : Toys & Games