The frequency with which you should replace homemade catnip toys depends on several factors, including the quality of the toy and how often it is used. Here are some general guidelines to help you determine when it’s time to retire a catnip toy:

1. Signs of wear and tear: Over time, catnip toys can become damaged or worn out from repeated use. If you notice that a toy is fraying, has loose stitching, or is otherwise damaged, it’s time to replace it. Damaged toys can pose a choking hazard to your cat and may also expose them to harmful materials.
2. Loss of fragrance: Catnip toys rely on the scent of catnip to attract and engage your cat. Over time, the fragrance of the catnip may start to fade, making the toy less appealing to your cat. If you notice that your cat is losing interest in a particular toy, it may be time to retire it and replace it with a new one.
3. Excessive dirt or grime: Catnip toys can accumulate dirt, oils, and saliva over time, which can make them less appealing to your cat. If a toy is looking particularly dirty or grimy, it’s time to wash it or replace it.
4. Boredom: Just like humans, cats can get bored with their toys over time. If you notice that your cat is no longer interested in a particular toy, it may be time to switch it out for something new and exciting.

In general, it’s a good idea to rotate your cat’s toys regularly to keep them engaged and interested. You can also refresh the catnip scent in toys by adding fresh catnip or by storing them in a sealed container with a small amount of catnip. By paying attention to the condition of your cat’s toys and monitoring their interest, you can ensure that they always have safe and engaging toys to play with.