All you need to do is buy some live mealworms and out them in a bucket or gallon bottle of oats (they cant climb even when they turn into adult beetles).
If you dont want to go out atm you can buy some live worms on ebay
I used to have them when I had exotic frogs and geckos
macgro! That was a whopper of a fib! Mealworms don't climb? The little b*****$ are climbing out of their sack as soon as it's opened, and when I put them in the feeder for the birds, they are up and over the wall in seconds. The birds just have to stand underneath with their beaks open and in they fall
Live mealworms are horrible! I used to feed them to my aunt's birds when I was a child (She did research on how eggs all hatch together - as we all know they cheep away to their mum and sibs before they hatch) and I didn't object then, but now they're all coming at me
I think I'll revert to soaked dried mealworms.
For the gecko, I had a look at how to keep them and thought they might not cope with the cold here, especially during our many power cuts.