Silicone adhesives and sealants have a high degree of flexibility and a very high temperature resistance (up to 600° F), but lack the strength of other epoxy or acrylic resins. They are based upon ...
Everything is sealed up with Sugru, though you could probably use caulk or even hot glue (if you wanted something more temporary and less expensive). The smartest bit has to be the loop on Dave ...
This interior caulk has moisture- and mold-resistant properties, making it a good choice for kitchens and bathrooms. You can buy either acid-cure silicone caulk or neutral-cure silicone caulk.
The casting material is cheap silicone caulking from a hardware store, and color can be added with a small amount of cheap acrylic paint. A few drops of glycerin added to the silicone thins it out ...