So Mocha is 8 months old, and I have started putting her hair up everyday. She has started to calm down and not fight me everytime I hold her head to put the hair bands in.
Problem is.. When I'm not looking.. She eats the hairband. I put one of those clear elastic hairbands on her.. Very small and I don't think it will cause obstruction, but she eats them almost every day!!!

I dare not put bigger hair bands like what I use for my hair (or Lulu's hair) because I know she'll eat them too. She apparently ate one of Lulu's hairband MONTHS ago and it only came out like a month ago. I found out only because I am a constant poop inspector

She also won't stop biting Lulu's topknot. I NEVER get both my babies tidy and pretty for more than a few hours because Mocha keeps biting Lulu and she will paw off her own top knot after a few hours in. I know it doesn't bother her, she just likes to play with it.
What do I do???!?! HELP!!