like those plastic 'dices' that were bouncy

or these balls are prob bouncy also - https://www.amazon.com/Mega-Pool-Party-Beach-Favors/dp/B0711YMWPF

size would be no larger than holding the bouncy thing between 2 hands

looking for these bouncy things in various shapes & design, like a bouncy coffee cup, or smiling face

where specifically do you know of that specifically has bouncy things of all kinds, not just balls

link directly