Damp towels hanging on a rack seem to get musty in the area
where they contact the rack. Which makes sense as that
spot has the least air circulation.
Would have thought this would an instant hit on google, but
no.. heated towel racks for sure, but not vented.
It would have a central perforated
tube to distribute air,
radial fins running the length of the tube to support the
towels (or other articles) with minimum contact area,and a
little fan in the end. And some kind of stand, or attached to a
wall, naturally.