What do you do with them?...if you are the bride groom (like my son was within the last two weeks) you purchase a bunch of them and have them personally stenciled for all the groomsmen plus the Father & Father-in-Law.
Mine shoots pretty hard and is suprisingly accurate. I would guess the velocity to be in the 250fps range. There was a hell of a gun battle going on before the wedding during the dressing & picture taking and I was quite amused that all the above mentioned stayed armed through the wedding and reception. These fit very well in the inner coat pocket of a Tux
Everyone was (chandilistic) enough considering all the guest but the closer friends were suprised and delighted when they found out that we were all armed
The Brides Maids felt that they had been cheated as they recieved the fancier cosmetics instead of the airsoft's
Those boys would shoot those guns like they held seventy rounds instead of seven and it was a good time (for me & the brides father) to stay clear as the overall noise of the airsoft battle was impressive.
In the end, these did make for good memento gifts and are great around the house for keeping the sight picture & trigger control up to par.