Spitball technology has come a long way since its invention in 1982. Initially a spitball was made of saliva-soaked paper and propelled by the combination of an empty pen and breath. In 1999, an important discovery irrevocably altered the spitball landscape. Now spitballs are shot with semi-automatic CO2-powered weapons instead of empty pens. And due to the increasing concern for deforestation, spitballs are made out of a more renewable resource: thin-skinned, paint-filled gel caps. Check out the enormous advancements in spitballs at Action Paintball Park with today’s Groupon.