I wonder if this could modified or if we can make our own "blade bender" out of baler-belting to do the same. Reviews-ratings help a lot, but are 'all-extreems'. I'm thinking about just pulling a small roller behind the tractor to do this, sounds like it works much better on shorter cuts.
http://www.homedepot.com/p/Toro-Striping-Kit-for-42-in-or-50-in-TimeCutter-SS-and-TimeCutter-Z-models-120-7905/202770976?cm_mmc=shopping-_-googleads-_-pla-_-202770976&skwcid&kwd=&ci_sku=202770976&ci_kw=&ci_gpa=pla&ci_src=17588969