Nope. I would love feedback on the written pattern, but as long as your hook is the right size for your yarn it can be any yarn and hook you want to use.
Any colors as long as it is at least two colors.
Safety eyes would change sizes depending on yarn used to fit your project you can also use felt or crochet eyes if that is something you already do (as there isn’t any type of tutorial in the pattern for those eye options)
Awesome. I’ll approve you to test so you can look through the pattern now. Once all the testers have been chosen/ next week I’ll make a group message for a place to hold all the feedback, however feel free to message any questions or feedback as it comes up before the group text is made.