Red and Black Bow Ties
These lighted bow ties are relatively simple, with 6 single-color red LEDs mounted on each tie.
One tie has a red base fabric, and the other is black. They are both pre-tied, with adjustable neckbands. The LED driver and batteries are hidden within the folds of the tie.
These were made in 2010, but I started making bow ties in this style as far back as 1999.