Have just seen it online, a flexible silicone type thing that fits over the potette seat and can be folded. I always thought potettes were great, but what do you do on holiday at your destination accommodation where you could empty and clean a pot and your toddler won't use it in loo seat mode? Use all your expensive disposable liners (very wasteful imo) or take /buy another potty there?
I can see it being popular because it will mean the potette is used more as a conventional potty, going some way towards justifying its cost although the reuseable liners are about £10 each. But it is still small enough to take around wherever you go which is the main issue with air travel. And the environmentally conscious can still have the benefits of a reuseable folding potty.