these hopper balls are such a good inflatable i don't know why art of them is extremely few and between, lovely work!

I think it isn't just hopper balls but inflatable balls in general (the only exception really seem to be beachballs because of the summer vibes they spread). I assume pooltoys tend to be a bit more popular because they can resemble characters. Whenever characters bounce about, they either imagine balloons to be durable, a bouncy castle or pooltoy to be there instead. And yeah, those hopper balls aren't used at pools a bunch and usually more sturdy (kind of like gymnastic/ yoga ball chairs) which is likely why people favor the softer and more broadly found ones.
But yeah, a very toony rendition of an oversized version of such a hopper ball. Big toys are always fun. ^_^

I think they're fairly niche even by inflatables standard. Though rodies (or whatever the general term for them is) might be even nicher
And I admit I haven't posted much bouncy art on this site in ages. Though I do really like huge hoppers.