Estimated crafting time: 3 weeks (due to convention season)
The book. The big book that every Dungeon Master keeps aside to make sure his player's have NO IDEA what he could unleash onto them. Feel the need to make it more intimidating? This cover will do that for you!
The cover slips around your own Monster Manual like a sleeve, and in no way harms your book. In fact, it even protects it!