Dinosaur Mayonnaise is an Artisan Good made by placing a Dinosaur Egg in the Mayonnaise Machine, taking 3 hours
Dinosaur Mayonnaise is an option for The Missing Bundle in the abandoned JojaMart.:
Dinosaur Mayonnaise is used in the spool of the Sewing Machine to create the Dinosaur Pants
Dinosaur Mayonnaise is not used in any quests.
Although Sam hates Mayonnaise, Duck Mayonnaise, and Void Mayonnaise, he likes Dinosaur Mayonnaise as a gift