Shoe Goo seems a great alternative and easy to apply - just squeeze on , spread with a butter knife or flat plastic implement like used in decorating and to finish dip finger in water and tidy edges. The wet finger seems to allow moulding to any shaped toe. Dries and hardens pretty quickly but haven't tested how long it lasts. I guess it depends on amount of tapping and surfaces. If it wears off though, i think you'd be able to sand it back and reapply.
Much easier than shaping and applying a toe guard. I've also used it at the toe end of the bat between where the scuff sheet ends if there's a gap as I hate it when dirt/mud gets underneath the scuff sheet.
Don't forget to wash hands as it has a hazardous warning but it also picks off easily like rubber.