This one is hard to explain, but I just bought it and love it. It is a regular hinged toilet seat for adults, but within it is a hinged potty seat for kids. So you can pull down which ever one you need, or push up whichever one you don't need. Since it is just like a regular potty seat - it's 100% easy access cleaning. I love that yoiu don't have to keep putting on or taking off a kids potty seat, so there's no potty seat laying on the floor of our bathroom anymore. A little pricey, but TOTALLY worth it. Here is the link, but Amazon also has some:
http://www.onestepahead.com/catalog/search.jsp?N=0&Nt...