Just found this one:

Pee funnels please!
 

It's all gone very quiet on the pee funnel front, is nobody using them out there? Please hunt around there must be pics somewhere!

one more to add

If your going to pull your pants down might as well squat

First time I ever saw a gal use one
 

I was at an outdoor concert. I had to pee and went over to this fence where guys had been peeing. I took my dick out and started to pee and this gal walks up next to me, drops her pants to her knees and brought out one of the funnels, placed it and started to pee.

I looked over in curiosity at her and she smiled back. I said that is something new. She responded that it was a convenient invention, but she made hers herself folding cardstock paper. I turned toward her with a smile showing my dick and said"I've got a built-in one". We both got a laugh out of it.