Bullfrog shrine
A shell to flex, the prize it protects
Nobody has confirmed an answer yet. If you solve it, say what worked.
How shrines workThe rhyme on the offering plate describes a snack. Hold that snack, stand on the plate and press Q to drop it. A right answer lights the shrine and gives you and your pet XP; pick the snack back up. Pressing E feeds your pet instead. Each animal's shrine shows the same rhyme in every world.
Found at a Bullfrog shrine by Field Guide. Every rhyme in the book