Lexi gets bored after about 30mins of chewing on hers.. so we just take the old ones a put them in the bag full of new ones and when we get her another she thinks shes getting a new one

. eventually, shell get one down to a little nub and play with it, but she knows if I see it I'll take it away because I dont want her to choke on it

. shed rather play with her puppet puppy toy or her sqweaky piggy... she even knows them by name!