Port Salerno Elementary volunteers and fifth-grade teacher coordinated the project, not expecting a bottle to be found 16 years later.

The best inkjet printers achieve vivid, detailed prints by spraying tiny ink droplets onto paper of all kinds and sizes. Being generally smaller, cheaper and more versatile than laser printers ...

The researchers monitored the amount of tattoo ink used in each session by weighing the ink bottles before and after and examining the ink residue left behind on the dirty needles, cloths and gloves.