Neon foam—that's all Twister inventor and toy developer Reyn Guyer needed to launch NERF in 1969 under Parker Brothers. Dubbed 'the world's first indoor ball,' NERF was such an instant success ...

Whether under fluorescent mega-mart lights or in darkened subterranean bins, they call out to you in all their neon glory ... of colored balls to their line of quirkily elaborate foam weaponry ...