Katarin, I've been told that that EDC is one of the purposes of the double-barrelled slingshot. A lady I used to work with had impressive cleavage and carried a wide variety of items daily.

However, if your gown doesn't allow for that, wear the nylons that don't have the panty attachment but are held up by the wide elastic band, and you can tuck a few things in there, carefully placed (driver's license, cash, ATM/credit card, credit card knife, etc). Put the bulkier stuff, like the derringer, compact and the lipstick in the little bag. Wrap a silk hankie around the derringer to avoid getting any oil on the bag lining.

A friend of mine says you CAN tuck the derringer in the top of the leg band, but you have to be careful about checking the bulk vs. the dress design. Also, it's not all that comfortable for an entire evening, it can work out during strenuous dancing, and can give a gentleman a surprise when dancing cheek to cheek.

Sue