A newly identified urine bug in men could have links to prostate cancer.
The actor, who played Gunther, was first diagnosed with prostate cancer in 2018.
The letterbox-friendly kit features funnels, test tubes and a timer.
"The whole point of this exam is to prove to men that it’s actually not a big deal," the comedian said.
The comedian has vowed to "try and beat it".
The disease has overtaken breast cancer to become the most commonly diagnosed cancer in England in 2018.
It's still in development, but if approved, men might not need a 'digital rectal examination' at the doctor's.
Elton John Says Infection Left Him '24 Hours From Death' As He Reveals Private Prostate Cancer Battle
The singer underwent successful treatment for the disease in 2017 but later suffered complications.
The 74-year-old singer has been given the all-clear from prostate cancer, following a secret battle that lasted three years. He urged men at an event on Saturday to get themselves checked in the hope of catching it early.
The singer is now urging other men to go to the doctor, insisting his successful treatment was down to "catching it early".