Bass Pro Shop used to sell them.... about 30 or so years ago. :lol: I havn't seen a Manns Stingray Grub in quite some time.
I did a Google search and came up with this:
http://www.sovereignsuperbaits.co.uk/Lures/Soft_Baits/Grubs/grubs.html
and this:
http://www.landbigfish.com/tacklestore/showcase.cfm?PID=3908
All the best,
Glenn