[He's hoping it'll be fixed by the time he gets out of here. Or maybe it's already fixed.]

They're part of a game. Weapons in the UG, regular pins in the RG.

[He picks up one with a house and a chain on it, and pins it on his shirt.]

This one creates a line of barbed wire between you and an enemy.

[He draws a line in the air, jumping back in surprise when instead of nothing, barbed wire does indeed stretch across the space between him and Kim, though it disappears just as quickly.]

...It's supposed to last longer than that, though.