WOW Scott! Them are some huge pads, I've seen then in some of my pond books but never anywhere else. How much does a plant like that cost? I can't wait to see it with a bloom or two, are they huge like the pads?
I'm also like you, anything that will hold water will work. I have an octagon tub out of a trailer house, an old tub (like clawfoot, minus the claws) a preform and others.
Keep up the good work, looking good!!!!!!!!!