Hi guys, Recently from jlo 's post I learnt getterback is a good way to locate your sunk quadcopter or else. That is a very smart idea and a fairly small load to add. I placed an order right away. That triggered me to think: 1. If the getterback can put some dye into the package maybe it is even better to help locate the sunk quadcopter? 2. How about a smoke marker to help locate fly away quadcopter on land? People often complained can't get a visual lock of the estimated crash site (with help of DJI app it could give you an estimated coordinates). Of course there are complexities on how long, how soon, how big, how heavy etc etc. but does anyone know there is such a product on the market? Or someone care to build? It would be a great accessory everyone would love to have.