Mark wrote in message ...

Hanging ball nets on the side or stuffing them in a basket falls outside the
parameters of the question.

Ikea (kids' section) do a hanging mesh tube, with internal dividers
and access holes in the sides. It might not be what you're looking for
here, but it's a really good way to store a large number of inflated
footballs / basketballs, and in minimal floorspace.

Also makes a cat hammock (but that's a weird cat).