Warm your thawed mice in in hot water until yor mice are warm. Wiggle the mouse in front of your snakes face with some hemostats or tongs. You could also use a stick and nudging the mouse a little to make movement. Try not to let the snake notice you. You want the snake to pay attention to the food item.
This has worked for me. After a while it will recognize the thawed mouse as food.
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My Critters
6 Leopard Geckos 2.4.0
1 Tokay Gecko 1.0.0
2 Ball Pythons 2.0.0
2 Black Kingsnake 1.0.1
4 Baird's Rat Snake (Thanks Vadoni!) 2.2.0
***1.0 Loma Alta***1.2Hawkeye 04 stock***
2 Gray Ratsnakes 0.1.1
1 04 Amel Cornsnake 0.1
1 04 Anery Cornsnake 1.0
4 Dekay's Snake 0.1.3
1.0 Ambystoma tigrinum nebulosum
1.1 Green Tree Frogs (H. cinerea)
Critters under my care
7 Red Milk Snakes 02,04
2 Mexican Milk Snakes
2 Black King snakes 03
2 Mexican Black/California King Hybrids
11 California Kingsnakes
1 Eastern Kingsnake
11 Graybanded Kingsnakes
2 Baird's Rat Snake
1 Yellow Rat Snake
1 Everglades Rat Snake
35 Corn Snakes
2 African house snakes
1 Green Tree Python
2 Boa c. constrictor
1 Mottled Rock Rattlesnake