Friend loves those old-folks handy extension-grabber or pick-em-up helpers, and needed a holder to organize. Made this in Tinkercad. Holds 3 or more items depending on how you set them onto it.
 
Holder is easy to mount to wall using screws, or just double sided foam sticky tape squares. Scaled up, could hold lightweight fishing rods, perhaps.

Printed prototype on N4Plus as base-down, flat, diagonally on bed (45 degree rotation), with holders upward.

Supports: Yes ('Everywhere')...leaves some vertical portions in the recessed round areas. Easy to remove.

Use 30-50% infill for more strength, 4 walls. Best for lighter weight items, dependent on mounting. Not for very heavy items like clothing or something on a hanger.

Approximately 14.5" width  x 4.25" outward x 3" tall.