One of our members is also a member of a club in Florida as well, this afternoon he was telling me that the club in Fl has foam pusher flying wings that bounce off one another when they make contact. He's going to bring one to the next meeting to let us see what it's all about. They are an all electric club so that is what they are flying (our club is a mix of electric, glow and gas) so it will be interesting to see if there is any interest in it, what develops.
I still have one or two 1/2A engines kicking about if that is what come out of it.
I have to admit that at my age, I am finding the convenience of electrics is more appealing, except for my last build ( a lot of gear to get a small electric airborne).