As the co-star of Step Brothers, Will Ferrell admittedly had to do some wacky stuff for the comedy, which opened on Friday.
Including help make stunt testicles...
..from his own real set. "They're not real but my balls were modelled. I put them in hot wax to build the mould."
And now he has the "stunt nut sack" at home:
"I asked the prop people,
'Could I please have my stunt nuts to take as gift from the movie?' and
they said no problem, so they're at home.
"They've been brought out on a few occasions; we had a dinner party...
and the subject of the stunt balls came up and I went, 'I have them, do
you want to see them?'
"They got passed around by 20 people... They'll be in the Smithsonian (Museum) one day."
