The Male Urinary Drainage system will allow a continent male to urinate lying flat on their back, sitting, lying on their side, or standing without significant back-flow during or after use.  It is designed to be easily maneuvered into tight spaces created by  casts, braces, etc..  It is easily used by persons with tremors, weakness, visual deficits, or use of only one arm.

Try a MUDS for your  spill proof urinal alternative.