Doris,
Nice concept! I've thought of doing that, too.
I know it's a bit late to chime in, but consider the new Flextape if and when the duck tape starts to fail. I've used it a couple of times on my teardrop. Also, did you try that E6000 craft glue? I've read on the RC forums that if you scuff/sand the surfaces first, a few different glues will work - Goop, E6000, 5-minute epoxy, DAP Weldwood to name a few.
DJ