I pulled my first convention pieces out. The sash has my convention registration number on it. The COA has the same number. Originally, we were able to keep the same number registration number for the years Bonita ran the convention. That makes me think it came in the tote bag with all the other goodies. The tote bag had Ashton Drake story cards, a pleather notepad and pen with Gene on it. The Atlantic City Beauty Magnet and a Blue Goddess phone card were passed out later. I don't remember if the outfits were in the tote bag or passed out separately. It was a 1-day event and they kept things moving and passing thing out at different points of the day.

My COA is 127 and matches the sash. I’m sure yours does too. It’s really odd how many were blank and no sash, as people come forward.

Here is the suit.

Mine does have the sash within the box (with the same Mel signature in gold on the lid). I didn't check the COA but if you need me to do so, let me know and I am happy to do so (as long as it doesn't involve tearing anything apart). I don't recall if the sash came in the box or was handed out, but it might be worth checking if it somehow slipped behind the bagged towel.
The other items (pen, comb, tote, etc) were misc. souvenirs handed out during the convention and not specific to Atlantic City Beauty fashion.
I don't remember the red interview suit. What was that?
I had the pink robe at one time but don't know if I still do. I don't think it was produced by AD.
Gael