Ah, I'm going to guess that you're a dentist by profession, and this is your colourful dentistrying room... this is what you can see from the chair, to remind kids that without proper flossing technique you'll end up with spinach in your teeth, or whatever food leaves radioactive florescent yellow between-teeth stains.

Parents love your office because the kids really brush well after visits, but your slogan 'Without great flossing, you're likely get weird convex grippy eyeballs' could use some work.... maybe 'Brushing is fun, no more green tongue'?