Fish Trivet

Fish trivet. Trivet! What a word! I guess this is not actually a tri-vet. Do we still call it that? Or a univet, or novet... besides not having the vocabulary to describe the object itself, I am struggling with the right kind of glue to use. The stuff I have works, but threads out a lot, and bubbles up. It's called "advanced craft glue". Maybe I need "more advanced craft glue", or to spend more than 3 dollars on it!