Some high school kids from Fredericksburg, TX fired one off that hit 36,000 feet at White Sands.
http://www.nasa.gov/centers/stennis/news/newsreleases/2009/HEC-09-004.html
I’ve jumped out of perfectly good airplanes at 13,500’.
This is no big deal.....
Hell, I could make a great combat movie if I could find my little green army guys and my BlackCat firecrackers/S