Shannon, I did a dog collar to try it out and used the EMT Military tape name tape frame and it worked great! I don't have a source for the collars.....just got one from the pet store to try it to see if it would work. Just for kicks, I did a cat collar also, but had to use adhesive back stabilizer to hold it. The collar is 3/8" wide and I put a name on and it worked! I used a fast frame for that one. Good Luck. Let me know if you have any other questions or if you find a source for the dog collars. Karen Embroidery Plus Northglenn, CO