At this point in life, I think the only kind of knot I know how to tie is a granny knot. Though you could’ve probably called me a knot expert back in the day. This coffee mug will teach you how to tie the most common knots while you sip your coffee. It has a cleat for a handle, comes with two pieces of rope, and has clear instructions on all sides of the mug to teach how to tie a bunch of different types of knots.

Available at amazon.com for $13.25