Living in Colorado, I used to frequently pass by a company whose function was to extract semen from bulls, freeze it, and sell it for the 'artificial insemination' of cows.
My constant life-long search for the perfect jack-off lube led me to consider frozen semen.
Come in a condom.
Package it to prevent spillage, and freeze it.
A razor's edge divides what's erotic from what's disgusting. If you're getting disgusted, stop reading now. If, on the other hand, you're feeling more and more aroused, .... 24 hours later, slip the frozen, cum-filled condom on your spit-slick hardon. The cold adds a thrill. As the cum thaws, it provides the perfect lube for your next mighty orgasm, and so on.
There might be alternative possibilities, and I'd be pleased to hear from YOU.