Sophie's potty training and so are some of her friends. The following photographs of Pebbles and Nocchi (short for Pinocchio - he's got this long nose...) from Nadine in Switzerland made me roll round laughing, I though Sophie was nosey!!!! 
Please take note Sophie - these kitties are only 5 months old and are already on Amber (and about to go onto green) - Miss Slow Coach! 
Hi Angie
Thank you so much for sharing your potty training - that has helped a
lot. We've been training for 3 weeks now, and actually doing great.
We're already at the amber stage and I plan to put them on green next
week. Both cats (British Shorthair) like water - so mix litter with
water, and you get the huge mess!! But I don't complain, everything
has gone well so far, only two accidents on the floor!!
I just wanted to share some pictures I took last week. As you can
see, we've put plastic all around the toilet, as wet litter sticks
quite well to the walls...
Greetings from Zurich, Switzerland
Nadine
Pebbles checking out toilet
What is in there?
.......that feels wet............
......at a closer glance that's - well, that's water!!
My sister (Pebbles) put her head in the toilet!! How gross!!
Pebbles checking out Sophie's site.
Pebbles and Nocchio have moved onto the final green disc.......
Inspecting the new bathroom situation...
Pebbles: "are you serious??" While Nocchi climbs all the way down to the "fountain"...
Here's brother and sister George and Thomas from Dallas, Texas in the USA.
Here are my two kitties... George and Thomas
Thomas is doing his business and his sister, George, is watching and taking notes. 
Here's Darla from Melbourne Australia. Andrea says " love the 'amber desperation' photo because if you look closely you can see she has pulled the fluff and dust off the dustpan so that she could do her business there! (That was one of the amber attempts before we got the intermediate amber.)"
Another inventive cat!!
'Amber desperation'
Shy on red
Intermediate amber