Mine too, especially on the moist canned crickets! I can't even bear to look in the can, with all the random body parts clinging to the sides.Mine go crazy over moist crickets in a can, I call “chick chiiiicks!” They come runnin. That’s how I get them in the coop when I have to leave in the afternoon for work. They also love grapes, and two of the three like blueberries.

Same for grapes and blueberries, although the grapes seem a bit tart. They'll chase around the one with the grape, steal it, and keep it in their mouth until the sour starts, then they get confused.
The one dead-certain treat that we use for collecting them and getting them to go where we want them is Trader Joe's Raw Sliced Almonds. Ingredients: Almonds, lol. They don't need refrigeration, so we can keep them handy in the steel feed can. Five stars, would recommend.