arma virumque cano (et alia)
While it might be a fun activity, blowing through ammo on full auto can be spendy, perhaps his and hers engraved pistols might be better. I did attend a wedding back in the 70's where the photographer brought an old double barreled 12 gauge. The father of the bride who got to hold it was a big guy with a black beard. Sort of looked like Popeye's nemesis Bluto. In the photo he stood next to his daughter looking stern and scary. The groom was on his knees looking up at he preacher looking very scared. Pretty funny.
This is just more of the extremely popular gun adulation. It's in movies and music, on TV and now even in Vegas Wedding Chapels. But of course you don't think this has anything to so with the problem.