Where are you feeding them? Try putting them in a deli cup in the dark overnight with a food item (f/t or live). Put them in a closet and leave them there and don't check on them until the next morning (don't even open the closet to peek!!!). That works a lot of the time for me.
You can try braining a f/t pink (use a razor blade to cut open the pinkies head exposing the insides), try dipping it in chicken broth (make sure broth isn't cold), try dipping f/t pink in "tuna juice" (drain a can of tuna into a small bowl and dip pinky into the bowl of tuna juice".
You can also try scenting with anoles, but I haven't had good success with this method actually. Though others have.
No way. They're literally the size of pencils.