The Contemporary Showerhead with Ceiling Arm provides the ideal water pressure and modern aesthetic for bathrooms in need of a simple upgrade. Easy to install and simple to clean, this rain style chromed showerhead will withstand the test of daily use.
If you want to keep the plumbing out of the ceiling but still get the head towards the middle of your shower, I did a search for "rain shower head ceiling bracket" and got these three hits, they might give you an idea on how to make up your own solution:
BestBathrooms Square 200mm Shower Head and Ceiling Arm £60.00
BestBathrooms Round 200mm Shower Head and Ceiling Arm £57.00
Hudson Reed Ceiling Tile Shower Head 370mm Chrome £188.00
Ultra Square 200mm Shower Head and Ceiling Arm £103.50