I don't have a bash bunny, and even if I did I don't know how to code for the various languages that may be needed, but I have an idea:
You have what ever payload you want run as it does, but then afterwards you have the bunny force the machine to share its internet with it, so you can access the bash bunny on the network later (not taking it back after the payload executes). Obviously ssh wouldn't normally work since port forwarding wouldn't be set, but I am sure the creative and knowledgeable community you guys are know some tool (like teamviewer for terminal) to make an ssh like connection possible without port forwarding. This is just an idea, but looking at the possibilities that the bash bunny brings gives me hope for something like this to be possible. (If anyone can make this I would be very impressed).