Hi everyone, I hope you are doing great!
My initials thoughts about he project is that there are ton of ways to complete it.
If you taking it easy it might be take 10 minutes to finish but if you think thoroughly a whole web project could be made from Mixed Messages Project.
I thought I could make an interactive web game with this project that you could create random horses and save it to slots, and than race them with their random stats like age, speed, breed etc. so I made a Race-Horse creator.
I simply created a script named ‘main.js’ for fulfill the requirements of the project for now, but I will try to complete my project as a web page game in the following days.
You can find my project files in the link below, please share your feedback. I would love to hear about your thoughts 
Link: GitHub - ZeePLA/Horse-Creator-Project: This is a portfolio project of CodeCademy named Mixed Messages.
Please find the script in the ‘main.js’.
I enjoyed a lot in this project!
It was a great chance to reinforce my knowledge about classes.