I do not know if this will really add anything, but possibly laughter. I have put too much expanding foam into empennages on some RC planes. I poured too much in and it expanded 25 times or more and blew it apart. Then I had the building pleasure to do it over. Gee what fun. It will really warp wings too. I do love the stuff, but it takes some practice. I have also used Great Stuff in the aerosol cans. I think it works well, and the stuff I bought at Wal-Mart or Home Depot has a valve on top so that you start and stop the flow at will.
When I ran the shipping/receiving department for the helicopter shop, we would ship out things that needed to be packed really well and had to avoid damage at all costs. So I would buy the A and B components in 55 gallon drums. (Thought here, if you watch closely, you can find these expanding foam set-ups used and at deep discounts. Maybe a club might want to go in and buy one it if there is a need for such a massive amount) One of the side effects of mixing this foam is heat generation. So much heat that it will burn your skin. When it starts smoking and burning your skin, you flinch. When you flinch, you move off your target. When you move off your target you leave a trail of super hot, super sticky adhesive sticking to everything. Sticking to things that you would have never thought of, like, concrete floors, foam rubber floor mats, chairs, stools, desks, chain link fence, steel columns, steel beams, rolls of paper, fork trucks, computer monitors, key boards, mouses, 1000' rolls of plastic tubing, melting though it and destroying great amounts .What an incredible mess that does not clean up easily. WOW. WHAT A MESS. Super cool stuff. Takes great preparation. We used a 2 mil Mylar like plastic film that came in 2 and 3 foot wide rolls. You use this to wrap the inside a of your shipping box/crate/container, protecting the inside of your carton so that you can get your product out easier; and to wrap the component that you are shipping like a main rotor head or blades or gyros, etc., making sure there are absolutely no cavities that this stuff can force it's way into, and then spray in your foam. After some serious expansion, some serious shaking and bouncing around, some smoke, and a source of heat on a cold day, you have packaging with foam inserts that will not allow any movement. Tremendous product. You do have to do a bit of forward thinking on how you do this, because if you do it wrong, you will have to cut your shipment out of it's container which is not always easy. I found the safest method was to package my contents in plastic, seal it so that nothing can get through this barrier, then put my mylar film around this before I put in the foam. If it leaks through your barriers, you've got some serious issues.
I hope this has entertained you. I know the entertainment for you was not as much as I had in the first hand experience. LOL (Lot's of Luck, beside the Laugh Out Loud or any of the other variations.