Hate to jump on the bandwagon, but..

[Mike D]

i think it would work. dont see a larger snake really paying any attention to a small gecko.

i would more be worried about the geckos food source bothering the snakes. but i was always anal about leaving feeder insects in a cage over night and such. other than that i dont see any issues.

 

[A. gigas]

I thought about that, I would be tong feeding. Flying Geckos at least I can be sure won't have problems with tongs. Those things have a bigger food response than retics. That is something to take into account though if I try another species, they should not be reluctant eaters.