Thanks for the replies. I tried the masking tape and it didn't work all that well as they took it off each other. The glue sounds like a good idea. I will see if I can find some and try that. The puppies are 10 weeks old today and only one's ears are partially up. That one kept the tape on the longest I think. They are soooooo busy right now. Anything new catches their attention but I really don't want them eating the tape. lol Would they glue be harmful if they "tasted" it? Thanks again everyone.