Dragons Teeth

I think that it means if you place them properly, you will receive a bonus of some sort.

was coming here to ask same question lol

There is a defensive bonus you get for placing barriers in the game. I am not sure exactly what they do but it is required to increase your bonus as part of the quest line.

I don't know what area they mean either. Near the landing zone? This is what they look like.

I'm not spending donuts on that until I know what it's for :unamused:

"simpsonare;c-1883888" wrote:
I'm not spending donuts on that until I know what it's for :unamused:

They are cheap enough I might get some to put around the coastal artillery from an earlier event.

Just keep playing the game, and the defensive zone will be revealed. It will be part of the quest line to place something in the defensive zone.

basicly around the main building of the event you can place some items after a bit of questline. there they give you bonus

Just to clarify, the bonus % you receive by placing the item is an increase in the percentage of event currency you earn. It does NOT give you a bonus % for your multiplier.

Some crafting items give a bonus Event Currency % as well (eg. first 3 trenches give 0.5% each).

Personally I think it's on-par with the usual Event Licence in terms of usefulness, if currency is what you're after. (i.e. not worth wasting donuts on.)
But if you like it as an actual decorative piece, then that's why you should buy the item. :)