For all of you out there that can't function in the morning without a cup of coffee, consider the Caffeine Molecule Necklace. It doesn't actually inject the pure goodness directly into your bloodstream (although it should), but it does let everyone around you know you're addicted (if they know what the hell a caffeine molecule looks like). It's 1.5" wide and both it and the chain are sterling silver. It runs $85, which is more than I expected. You have to be careful with stuff like this though. It could actually be the molecule for something like meth or coke. Like this Chinese tattoo I got on my ass-cheek. The dude swore it meant "100% Tough Guy", but it turns out it actually reads "Enter Here".
Caffeine in a Necklace [uberreview]