Thingies don't embed, icons work.

code/modules/projectiles/ammunition/ammo_casings.dm

@@ -268,7 +268,7 @@
 	var/modified = 0
 
 /obj/item/ammo_casing/caseless/foam_dart/update_icon()
-	..()
+	....() //to omit adding "-live" to the ammo casing
 	if(modified)
 		icon_state = "foamdart_empty"
 		desc = "Its nerf or nothing! ...Although, this one doesn't look too safe."
@@ -290,6 +290,7 @@
 		to_chat(user, "<span class='notice'>You insert [A] into [src].</span>")
 	return
 
+
 /obj/item/ammo_casing/caseless/foam_dart/riot
 	name = "riot foam dart"
 	desc = "Whose smart idea was it to use toys as crowd control? Ages 18 and up."