Bill Nye x Nick Graham - Science Rules Black Bow Tie - Buy 1 Get 1 Free! 10% of Bill Nye X Nick Graham collection sales go directly to The Planetary Society, the astronomy and space non-profit run by Bill Nye. 100% Microfiber. Dry clean if necessary. Self tie. Arrives pre-tied. Hook clasp closure. Adjustable neck. Get ANY second Bill Nye tie FREE! Over 12 different styles to choose from! Discount is applied at checkout.