giant metal display pin by gertie & mabel | Good way to hang a towel
Spindle Towel Rail by Jamie Billing. Reuse Material: wooden Reclaimed Furniture and Garden waste
This would be so easy to DIY with a curtain rod and S hooks!
Vintage Bathroom Kitchen Towel Rack, Swing Arm Towel Holder, Towel Rail, Six Swivel Arms,Folding Towel Drying Rack, Brown Towel Bar by RAGMAN770 on Etsy
industrial rail bathroom organizer (Ana White)
inside cabinet towel holder | ... Sink > Kitchen Towel Holders > Cabinet Pull-Out Towel Bar - Chrome
Towel racks mounted under shelving for pot racks
Snello Libell 150mm Base Unit Pull-Out With Towel Rail | Supplier - LDL Kitchen and Furniture Fittings & Accessories
Makes use of wasted space but would want the towel rack to be stable and not wobble nor interfere with door movement.