Replacing a Worn Out Bike Light Mount With Sugru + Magnets

I have a worn out Planet Bike LED Bike Light Mount.  It lasted many years and now it simply doesn’t click the lock closed dependably.  Online costs for a new mount seemed too high, appropriate, and yet, functionally, not a direction I wanted to go.  I couldn’t use the bike light as a helmet light while using my much bright Cygolight from my non-commuting bike. 

I am going to try this Instructable How to make bike lights with sugru + magnets and see how it works.