He was hoping to show them to timenchanter, but such was not to be.
Still, here, for posterity, is graphical evidence. Of course, this is our BFG we're talking about, so it takes more than the single picture to give proper documentation of that which is Stan. OK, it's because I can't aim worth shit in the dark.
First, we have Stan wearing his AMAZING pants:
And next, we have Stan's AMAZING pants, sporting their human: