An idea I had to improve this item was to make it craftable.

There could be many crafting possiblities though, as Nelson doesn't have any craftable, wearable ghillie items at the moment.

Some ideas I had:

A possiblility (and, imo, the most logical choice) is to just combine whatever ghillie item you want with the berries, I.E.:
1x Ghillie Top + 3x (? not sure what kind of berry) Berries = Ghillie Berry Top.
Or, for added realism:
1x Ghillie Top + 3x (?) Berries + 1x Glue = Ghillie Berry Top.

Another option would to use ghillie netting.

4x Ghillie Netting + (?) Berries = Ghillie Berry Hood/Top/Vest/Bottom
Or:
4x Ghillie Netting + (?) Berries + 1x Glue + Ghillie Hood/Top/Vest/Bottom

I think this could improve the item for server play, making it easier to obtain in servers where rocket isn't available.

Just something I came up with about 5 minutes ago, let me know what you think please!