Trainer seat for square toilet.

[nowandagain]

We have a modern square-ish toilet and DD is using it with a padded toddler trainer seat but it is round and doesn't fit well (tends to fall in a bit!!) Anyone seen a trainer seat for square toilets?

i use the potette travel potty as a trainer seat on our square toilet fits really well, actually it fits our oval seat as well.

What a good idea, thanks, we hardly ever used it as a potty (see other thread) so that will be ideal, I'll see if it fits!