Have you considered offering shower soaps in a more economical way?
We tried a few different shower soap dispensers and preferred this model.
Installation was simple, no screws or holes in your tile. This comes with a quality adhesive system and the chambers are lockable.
Easy to wipe down and keep clean. Easy to refill. Once installed then you can buy soap in bulk at a fraction of the cost.
Easier at turn-over as well.
Tips: Yes this unit is on the pricy side. But we preferred the extra hotel grade quality. If you do buy elsewhere here's what to consider. Easy to clean, smooth surfaces - Are you ok with screwing holes in your tiles? Lockable?
Be sure to prime it BEFORE your guests arrive. As this takes awhile.