I got these with the bubble blower awhile back for my Golden Retriever. He LOVED them!! We just got 2 puppies so I went on the hunt for these specific bubbles again! The GR loved to play with the bubbles and the machine made it super easy! Definately one you can use in the house - I had no problems with residue or anything. I am looking forward to their arrival so that I can watch the puppies have the same amount of fun and so that we can use them inside on the rainy days as well!