Brian, I also dribble some honey on the trigger so they will get in close and lick it. 
Hawkdancer, might be able to find you a Python or two down here. 
Nice, I will try it. Vanilla and a piece of cotton ball works well (bedding and food in one)
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. Depending on the species you are dealing with (example: roof rat) Which we have a lot of around here (fig jelly) as they love sweet fruit, and pieces of doughnut.