K.R.
You know, I bought a cool potty chair for my son when he was around 1-year old. It played music, had a llittle book it came with and everything. When he was actually ready to start sitting on the potty consistently (18-months old), he was more interested in the potty books I read to him and the reward chart I had made for him. The potty chart was a great success, he didn't really pay attention to the potty chair and it's bells and whistles, in fact, he wanted to use the "real" potty more than the one I bought.
I think a reward system (like a potty chart) would be a better focus for success!! My son loved putting stickers on the chart, even at 18- to 20-months.
Hope this helps!!