What do they actually do? I used one and it said it was successful but idk what it did. I used a second one I found and it gave me and egg.

i think they give you egg versions of the pet you want to capture i tried but i gt nothing it was because my stable was full

Basically mojo is one of the features of the current festival. https://www.sylestia.com/forums/?thread=40352

How it works is that when you mojo a pet, of the species that is currently having a contest, which can be found here, then you will earn a point for every pet of that species you successfully mojo-ed. If you make it into the top 20 at the end of the contest, you will get a 2 or 3 visible exclusive pet, depending on your placing.

During the contest, you can only mojo the species that is having the contest. Whereas during the breaks, you can mojo any species you want, but you won't get any points for it. There is a small chance that when you mojo a pet, you will get a 1 vis egg drop of the pet, regardless of the contest.


So if you found an egg on your second mojo, you're actually really lucky! ^^
Hope that helps!