When Leafy gave Bubble a pair, Pencil got mad at Leafy for not giving her some, so Leafy took them from Bubble and give it to Pencil. Eventually, Ice Cube got stuck in Pencil while she was upturned so Bubble took hers and Ice Cube's. They are a pair of shoes with springs on their soles. They come in blue and red variants. Bubble threw hers away during the staring contest in The Reveal.