Asmuth says the Omnitrix groups aliens in sets of 10. Using the order in which they appear in each series and tiermaker, I grouped all of Ben's Aliens into groups of 10.
How To Make Functional BEN 10 ALIEN FORCE OMNITRIX +FREE TEMPLATE | Easy DIY Cosplay Watch - YouTube
So, out of all the Omnitrix Aliens we've seen so far in Ben 10, which one is your favorite/ least favorite ? : r/Ben10
Amazon.com: Grostmend Ben 10 Watch Toys Ben 10 Omnitrix Watch for Kids Ben Ten Ultimate Alien Projector Watch Games Action Figure Birthday Gifts : Toys & Games
Omnitrix (Alien Force) by TheHawkDown on DeviantArt
Harness Superpowers with the Ben 10 Alien Game Omnitrix - The Toy Insider
Omnitrix (Object) - Giant Bomb
Amazon.com: Ben 10 Watch Toys Ben 10 Omnitrix Ben Ten Toys Alien Force Ultimatrix for Boys Kids Projector Watch Watches Action Figures Model Toy Party Supplies : Toys & Games