To the victor ... goes the bong -- at least if you're Nate Diaz.
The UFC superstar is showing off the custom new smoking piece he got after dismantling Conor McGregor ... a custom beaker tube-style bong from Illadelph Glass.
Nate was so excited about it, he posted a pic on Instagram thanking everyone responsible for hooking him up with the bong.
BTW, these things ain't cheap -- Illadelph bongs usually sell for hundreds of dollars.
His UFC superstar brother Nick, who's currently suspended for testing positive for weed, also got one.