Well, if you don't really have to have clear...

Drainage tubing. Black. Stiff. Corrugated so their tiny little toenails
can make an absurd amount of noise at 2AM. Holes for ventilation. And,
as a plus, it can be cut to fit any situation *and* there are all kinds
of connectors for it. T's. Threesies. All for infinite combinations.
Washable (outside. With a hose)

It also looks *wonderful* snaking in and around your furniture. *Not*.

Also, if you have dogs, it also keeps them amused as they try to track
the ferrets in the tubes, wondering where they will pop out next.

anne

[Posted in FML 5995]