If you're looking for an alternative bait to use on a mouse trap that won't set it off, there are a few options you can consider. Mice are attracted to a variety of scents, so you could try using these alternatives:
Chocolate: Mice are known to be attracted to the smell of chocolate. You can try placing a small piece of chocolate, such as a chocolate chip or a chunk of chocolate bar, on the mouse trap.
Nutella or hazelnut spread: Similar to peanut butter, Nutella or other hazelnut spreads have a strong scent that can be enticing to mice. Apply a small amount to the mouse trap, making sure not to overload it.
Bacon or fatty meat: The strong aroma of bacon or other fatty meats can also attract mice. Wrap a small piece of bacon around the trigger of the trap or secure it with a toothpick so that the mouse needs to tug on it to eat it.
Birdseed: Many mice are attracted to birdseed. You can place a small amount of birdseed on the mouse trap, as long as it's not loose enough to easily trigger the trap.
Remember that while these alternatives may reduce the chances of accidentally triggering the trap, mice can still be cautious and may avoid the trap altogether. It's also important to regularly check the traps and dispose of any captured mice in a humane and appropriate manner.