Update
I found a solution... for now. Here's what I did: I left their binkys on the binki clip. Strangulation hazard you say? I know. I just did it long enough for them to fall asleep. Once they are asleep, they're out cold so I went in & swapped the binki clip binky for a non-attached binky. They fell asleep quickly with no game to keep them up. I feel good about this. I feel anxiety free. And I didn't have to spend $120. Although I still think those crib tents would be marvelous.