The Silver Bullet nozzle is the classic erotic enema nozzle. A must-have if there ever was one. Link:
http://my-enema.com/shop/product.php?productid=17022&cat=271&page=1
Then there is a glass 2-quart enema bucket which comes with a silicone hose:
http://www.purelifeenema.com/glass-enema-bucket-kit-2-quart/
Add to that a check flow valve to prevent back flow:
http://www.purelifeenema.com/enema-tubing-check-valve-stops-solution-back-up/
Some people use an IV stand to hang an enema bag/bucket from, but the IV stand is too conspicuously medical for me to just have lying around my room. I think there are better choices than an IV stand, such as an adjustable height shelf or cart on wheels. For example:
http://www.amazon.com/TRINITY-EcoStorage-5-Tier-Shelving-72-Inch/dp/B007HOQ9YI/ref=pd_rhf_dp_s_cp_4_VACQ?ie=UTF8&refRID=0YHDD838QCJZ9DVWB2AF
If there is a better idea than something like that, I would like to see a link to it. In this case you just set one of the shelves on the right height to place the bucket on, such as 18" higher than your bed, and wheel it over to your bedside whenever it's time for an enema.
I am not affiliated with any of the above manufacturers or sellers.