Recap them and and make little boomers for your gun.
I've decapped many a live primer. Just did 5 the other day because I decided to anneal the brass before I loaded it. Put them all back in, they all said "BOOM!" when I pulled the trigger and not before, just like every one before them did.
Still happily answering to the call-sign Peetza.
You do not HAVE a soul. You ARE a soul. You HAVE a body.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.