L.M.
For my son I had an actual potty chair first. He would sit on it when my husband or I went to the bathroom. He peed and pooped in it a few times. Cleaning it was not a big deal.
Once he actually started training we got a seat that fit over the big toilet seat. We just bought on at Wal-Mart, not an expensive one, it was only about $10. He did great with it. In fact before he actually got big enough to sit on the regular seat, we did buy a 2nd one as the first one wore out.