I went to walmart and just got a seat with a deflector to help my little boy aim down. It ended up cutting him on his little penis, so I went to lowes and got him one that also works for the adults on the big potty . Its like a two in one and doesn't get in the way bc it stays on the potty all the time... Plus he loves using the same potty we all do.

To be honest, i've found using the real deal is better in our situation. They do have the covers you can buy that makes the seat smaller for toddlers.

Just go to the store and get one of those little toilet seats they make for toddlers and set it over the seat on the regular toilet. That way he can feel like a big boy and use the big boy toilet.

I started him on the baby bjorn potty (the one with the back and side and removable bowl) and then graduated up to the baby bjorn that sits on the big toilet when I couldn't stand to dump his poop anymore. Phew! He just turned 1 and he won't even sit on the little potty anymore, he only wants the big people toilet. But he still goes to the little one and carries it to the big toilet when he has to go.

Good luck!