I got my wild garter rehab to switch to frozen pinkies pretty easily (since worms don't have sufficient calcium) by thawing the pinky overnight in a tiny tupperware (or bag) in the fridge with a couple of worms. Then I took it out of the fridge and did the normal slow thaw. Wriggling the pinky with tongs to simulate movement and she took to it perfectly. I tend to give her a worm as dessert though. Now I don't have to scent them or wriggle them at all. Best of luck!!