What do you put in them. I bought a Kong stick, BellaMia ate the small piece sticking out then couldn't get the rest out. Actually, I had a hard time getting it out. Peanut butter and the squirt stuff they sell for it seems to messy and not very nutritious, and her dry food is tiny and just falls out. She wasn't very impressed with it.
Trying not to give high calorie treats. Looking for suggestions.