As everyone who lived through the seventies knows, anti-slip stickers for the bathtub should be shaped like groovy flowers.
But since there's nothing grosser than 30-year old bathtub stickers, Funmade makes new ones. They're cheap and easy to use. They make dozens of other non-traditional styles, including the ducks we put in New York [we're a little crazy that way]. We got ours at Grometville, $10 for a pack of ten.
Non-slip Bath Appliques [Funmade]