The Caffeine Molecule Coffee Mug is perhaps the most meta way to enjoy your morning cup of Joe. The mug was made by Joaquin Baldwin using a 3D printer and is an exact replica of a caffeine molecule. The bumps on the mug represent atoms and the lines (single and double) represent covalent bonds.
In addition to the Caffeine Molecule Coffee Mug, Baldwin has also made a smaller cup designed for sipping espresso. This is easily one of the cleverest and most meta coffee mugs around. It also serves as a showcase for how 3D printers can be used to create everyday items, not just controversial ones (here's looking at you, 3D-printed gun). The Caffeine Molecule Coffee Mug is available now and sells for $99; the espresso version sells for $48.