Bubbles and minefields do not play well together.

In fact, I think you could craft a variation on the Chicken, Fox, and Grain puzzle with these two things, plus a kitten.

You have a bubble, a kitten, and a minefield. You need to transport all three of them across the river…

Wait, that doesn’t work, because you can’t trust ANY of these things alone together. Maybe add a bag of kibble for the minefield to play with.