Nothing like a free orchid

[Pk93]

Ahh there is just nothing like getting free orchids.
My aunt has a couple HUGE reed stem Epidendrums, so of course I asked if I could have some of the keiki's that had decent root systems. And now I have 4 keiki's to experiment with. Right now they are soaking in some water and superthrive until tomorrow when I re-pot them.
Just a quick question:
-I'm thinking about mounting one of them, what should I mount it on?

- also the plant had about 3 seed pods, she didn't artificially pollinate them either so something in socal pollinates them, anyone know what