Remember the Nerf Football as a kid.
Kinda of a fun science story on Popular Science magazine which lists the top 10 Nerf Guns of all time. Some of them are pretty cool and so check them out in the posted article if interested.
Nerf Bow and Arrow 1991
Nerf Ballzooka 1994
Nerf Crossbow 1995
Nerf Supermaxx 1997
Nerf Lock n Load 1998
Nerf PowerClip DX 1999
Nerf Strike Unity Power System 2004
Nerf Strike Maverick 2006
Nerf Strike Vulcan EBF 2008
Nerf Strike Raider Rapid Fire 2009
Best Nerf Guns Ever -- Top Nerf Dart Guns, Crossbows and Nerf Ball Guns - Popular Mechanics