The Holiday Season is upon us and with it comes many cardboard boxes. Turn that Black Friday TV box into a fort with these cardboard crafting tools. Cardboard KnifeThis is a kid friendly cardboard knife design that uses the same geometry found in kid safe kitchen knives. If you're an adult however, I would recommend a sharp box cutter. Perforator ToolUse this tool to perforate cardboard for crisp, clean folds. FastenerThis tool has a fold-away point in the handle. Use the point to poke a…