Find out how to catch them with just leftover food and drinks!
Step 1: Drink up!
Leave it in a populated area of crickets over night. (image 1)
After that you should find some crickets have found their way in for a little drink. Only thing is... They can't get out. (image 2)
I can't be sure that your crickets aren't so smart as to figure out how to get out, but it's very unlikely!
Step 2: Soup Anyone?
Place a bowl of just about any kind of soup. WITHOUT NOODLES!!! (image 1)
Again, leave it over night and see the results the next day. (image 2)
The deeper the bowl the less likely they are to escape.
See? They're not so hard to catch now are they?