Curious Aardvark, no, I didn't tested it.
Joe, I saw your second video. You used a box of eggs. This peace of plastic is a refrigerator accessory for laying eggs.
On the other end, it is possible to make identically a rigid pouch in a wooden board. If it works, this solves the problem of many strings.
Not being at my best for the moment, anyone may test this egg box.