I've just been playing with the ProtoPasta Coffee Filament (purchased from filastruder) ....by golly it smells awesome when it's printing. It's not quite coffee.....sort of sweet coffee/ tiramisu. Just trying the hardening process they recommend in the oven.
Foolishness ensued, the print is great (even more so after being baked for an hour at 80c in an oven. But I have given the coffee cup coaster I made away before taking any photos, I will be printing more though