Need some recommendations on the right type of elastic for tying up my baby's top mop. She's 8 months old, and in the between phase of puppy/ adult fur. It's getting long, but tangles very easily. I find elastics that are too rubbery get tangled... And are hard to get out even after snipping with scissors. She's so patient with me while putting them in and out, and doesn't fuss with it, or her clips after they're in, but I want to make it more enjoyable for her when they have to come out at night. My pet store doesn't carry anything, so I'm looking for something possibly online, or available in a Canadian store. Thanks!