I play air acoustic, air banjo and air mandolin.
It's really a loser when you flip one of the air picks into the air mandolin. Those little f holes make in nearly impossible to get them out. The oval holes are about like my air acoustic. Most times you can't find the air picks when they finally shake out unless you're playing in fog.
The absolute worst is playing air banjo getting some really hot licks going and losing the air finger picks and the air slide all at the same time. Danged air picks fly all over the stage & they're so light they have a tendency to float so you have to wait until they come down before you can even hope to find them. I think I'm gonna have to use brass air slides from now on too. The glass air slides just can never be found if it slips off your finger.
I've never lost an air slide playing air bottle neck guitar. Some others of you may have and can give some insight as to finding those air slides.

------------------
DakLander