I built an arrow crester for about $15. 
1 Black and Decker re-chargeable screwdriver 
1 scrap 1"x 6"
4 finish nails crossed to form 2 "V's"
1 piece of 1/4" shrink tube as a nock receiver   
Works great! 
   (http://i1349.photobucket.com/albums/p753/sethstevens/Mobile%20Uploads/2014-03/CE07ABD5-2742-4DE0-B98F-EF6D91E39592_zpsocxjdzzj.jpg) (http://s1349.photobucket.com/user/sethstevens/media/Mobile%20Uploads/2014-03/CE07ABD5-2742-4DE0-B98F-EF6D91E39592_zpsocxjdzzj.jpg.html) 
   (http://i1349.photobucket.com/albums/p753/sethstevens/Mobile%20Uploads/2014-03/0CFD781E-A144-4069-85D0-BD2AF83ADED0_zps6p3tx4m5.jpg) (http://s1349.photobucket.com/user/sethstevens/media/Mobile%20Uploads/2014-03/0CFD781E-A144-4069-85D0-BD2AF83ADED0_zps6p3tx4m5.jpg.html)
			
			
			
				Great idea! That arrow looks awesome.
			
			
			
				That's creative.  Good one!
			
			
			
				Awesome! Thanks for sharing.
			
			
			
				What's holding the screwdriver?
			
			
			
				Thanks guys!
The screwdriver comes with a charger that you can screw to a wall. I screwed it to the board. That way you can run it while plugged in.
			
			
			
				Beats the heck out of using a Hamster spinning a wheel in a cage and stopping whenever he feels up to it!    :thumbsup:
			
			
			
				Very nice!!!
			
			
			
				I like it! I bet it would even do double duty, and you could spin test for good broadhead alignment. Well done!
			
			
			
				Where did you/what kind of screw driver is that?? I like the idea.
			
			
			
				It's a Black & Decker re-chargeable. Mine is older but, I just looked at their web site and they still have a similar model.