That's cool shiznizel I use a Stinkbud style cloner which I thought was the cheapest 100% success cloner there was, makes sense actually bubbles would work just fine.. My wife wanted me to clone some shit around the yard but my cloner is always busy, I might make her one of these to play with.
P.S. I clone using nothing but tap water, it is cheap, with my way it is 100% success will try with your way too I have oodles of bubble makers, err airstones (laugh)