I looked em up today...Cabela's has the Eluminator Nocks made for the crossbow bolts...3 for 31.00 and some change + shippin...They have the ones that turn on by enertia,Burt Coyote Makes em. I heard some bad things about the magnets for on & off switches....Ill probably get some before next year...Gun season starts in A couple of weeks...I rather make something when I can, rather than buy something...Im kinda crazy like that!LOL....Just like turkey calls!