"Nerf" is a toy brand for soft foam-based toys. These include foam balls meant to look like real sports balls, foam swords, and most-famously toy "blasters" that shoot foam ammunition. Think ...

Nerf blasters are fun and all, but they’re limited by the fact they have to be safe for children to play with. [Flasutie] faced no such restrictions when building his giant 40 mm foam dart ...