Anyone who can come up with a plausible "three seashells" alternative to toilet paper - and that would include explaining how 3s might work - could, er, clean up in today's market.
Apologies for the Demolition Man reference.
The three seashells are proximity sensors for a gesture interface controlling a multifunction bidet.
The part that really matters (bidet add-ons) in today's market has plenty of manufacturers, and they are using the TP situation for marketing.