12 Synthetic Mustache Assortment - Costume Moustache (Yellow) Got a stiff upper lip. Well, get ready to turn it into a smile with this fun-filled Mustache Assortment. Give one of these party favors to your guests to help celebrate everything from Movember to birthday parties to the holiday celebrations. Mustache assortment includes 2 each of 6 styles of self-adhesive, synthetic mustaches. 3" - 4 1/4" Assortment may vary.