Weeman Boys Toilet Trainer
I used this for my 2 year old when toileting training (ended up not toilet training him until later because he wasnt ready) but was perfect when he wasnt big enough to reach to toilet.
It has a hinge type device on the clip that clips onto the toilet so that it can be emptied inside of the toilet bowl whenchild is finished going and the toilet can be flushed when its in the bowl of the toilet to wash it out. I found once a week I still had to take it off to clean it properly though (like disinfecting it)
The downside of this is when tipping it into the toilet bowl to empty out there "business" if it was quite full or you tipped it sideways a little it would spill out onto the floor and would than need cleaning up. Because it was simple to do my 2 year year quite often wanted to empty it in himself which never worked because every time i would have to clean up the floor beneath the toilet. This did get very tiring.
A very good idea and device to aid in toilet training littler boys standing up but be aware of it coming out sometimes.
Keep your receipt too because I had the hinge break within 1 month the first time and took it back to the baby store where they replaced it.