red - easiest way is if you have time get some of the paint pens from CS http://www.csipaint.com/products/mar...nt-markers.php powder the heads then paint the eyes on and then cure normally.
if you don't want to use the 2 part mix you can get this stuff also from CS Seal Coat a one part epoxy http://www.csipaint.com/products/liquid-coatings/epoxy-top-coat-lure-jig-paint.php The only bad thing I've heard about this one part is don't use it on White or Chartreuse heads it yellows them after a while.
The 2 part you mix equal parts A/B, I used the bottom of a soda can and mixed some a bit at a time - your eyes have to be dry before you use it or it will smear the testors.